Anovulation basal temperature chart. What does the basal temperature chart look like during ovulation? Measuring basal temperature during ovulation

Reading time: 9 minutes.

There are many different ways to help women get pregnant. The article explains what it is and how to measure it to determine the day of ovulation.

But all doctors unanimously insist that using the indicated method requires a scrupulous and responsible approach. It is advisable to use it in cases of special need, when other methods have been tried and have not yielded a positive result.

What it is?

Body temperature changes due to many factors. It could be:

physical exercise;
stressful situation;
fight of the immune system against infections;
heat.

BT is measured immediately after waking up, because at this time the body is not influenced by external factors. Keeping a graph of basal temperature allows you to determine the onset of ovulation and the most favorable days for conception.

During ovulation, the temperature rises slightly - by 0.25-0.5°. This is the main sign that the best time has come for future motherhood and the female body is ready for the release of the reproductive cell.

Note! If a woman is sick or is in a very hot climate, the temperature rises and measurements cannot be reliable.

How to measure correctly

There are certain rules to accurately track temperature changes:

It is necessary to measure your body temperature in the morning immediately after waking up - every day at the same time. A woman must lie down. Before this, sleep should last at least 6 hours.
There are rectal and vaginal measurements of BT, but you can also monitor readings in the mouth. It will be worse if the described method is used for measurements in the armpit.
It doesn’t matter which thermometer you choose – electronic or mercury. The main thing is to use only it, without changing it to others.
To draw any conclusions, you need to build a graph for at least 3 months in a row. It is important to decide what data is considered normal for you, and then count their changes from this.
You need to hold the thermometer for at least 5 minutes.
It is advisable to start collecting information from the first day of your period.

While measuring basal temperature, you should avoid:

alcohol;
sedatives or sleeping pills;
long trips, heavy flights;
hormonal drugs.

Important! During this period, try to monitor your health so that chronic diseases do not make themselves felt, and also minimize overwork and bad mood.

How to make a schedule

Before you build lines based on the information provided, you need to fill out the table daily.

Step 1. Vertically in the first column indicate the date of temperature measurements.

Step 2. Under the date in the second line, write the day of your menstrual cycle on which this date falls.

Step 3. In the third line from the bottom, indicate your basal temperature for that day.

Step 4. Leave the fourth line for notes. For example: today there was a late bedtime or on such and such a day there was strong discharge. It is necessary to record everything that entails any changes and fluctuations in temperature.

It is best to start keeping records from the beginning of your period. For each subsequent month there is a new schedule. The most convenient way to make changes is in a regular notebook in a box. Each cell is a new day (horizontally). Vertically, it is worth drawing graduations in increments of 0.10. You can highlight the line corresponding to 37°.

Before drawing conclusions about the patterns of your body, it is important to know the norm.

starting from the first day of menstruation and until the cell is released, BT will be below 37°;
During ovulation, the lowest temperature can be observed;
basal temperature should be as low as possible during the first phase of the menstrual cycle. On the eve of ovulation, the rate drops to a minimum. After the egg matures, the follicle transforms into the corpus luteum, which produces the important hormone progesterone. As a result, BT increases.

The results of the constructed curves help determine the most favorable days for conception.

Interpretation of curves on the graph

By the presence of images and its subsequent decoding, you can learn about the true problems associated with the patient’s reproductive system.

it is necessary to determine the difference in average measurements in the first and second phases of the cycle. If it is less than 0.4-0.5°, it means that the egg does not mature;
a weak or not fully matured egg can cause a decrease in temperature 3 days before menstruation;
if measurements in the first phase are significantly higher than in the second, this is a consequence of a lack of estrogens (female sex hormones). If the data, on the contrary, is low, it means that the corpus luteum does not perform its function in full;
a decrease in the second phase of the cycle (less than 12-14 days) indicates an immature egg or its weakness;
Inflammation of the appendages can be indicated by an increase in temperature in the first phase for several days to 37°. Further on the graph a decline is visible. In this case, it is very difficult to determine the presence of ovulation;
in the case when, instead of a decrease in BT during menstruation, it increases, chronic endometritis can be assumed, which serves as an indicator of infertility;
in the absence of discharge and the duration of the second phase is more than 18 days, pregnancy is possible. If the temperature is also elevated, there is a risk of miscarriage.

Note! Normally, every woman has several annovulatory menstrual cycles throughout the year. In this case, the described graph does not look two-phase, but with alternating increases and decreases in temperature.

Types of curves

There are 5 types of curves:

There is an increase in the mercury column by 0.4° in the second phase for 12-14 days. The temperature drops before the onset of menstruation and the onset of ovulation. Such a curve may occur in women with a normal two-phase menstrual cycle.
The increase in indicators in the second part of the menstrual cycle is weakly expressed (increase within 0.2-0.3°). The cause may be estrogen-progesterone deficiency.
The mercury drops just before menstruation and there is no premenstrual drop. The luteal phase is characterized by a shortening of up to 10 days.
There are no changes over the entire menstrual period. This curve is observed in patients with annovulation.
Body temperature fluctuates chaotically throughout the menstrual cycle from high values to small ones with a large amplitude. This may indicate estrogen deficiency.

Fertility days

The fact that ovulation has already occurred can be determined by a jump in temperature of at least 0.2°; it rises to an average of 37-37.3°. What is important is not what marks were on the thermometer on the day of ovulation, but rather the difference between the temperature in the preovulation period and the so-called “day X”.

For each woman, indicators that are measured rectally or vaginally may differ from the optimal figures, because the calculation is carried out individually. But, if the deviations are too significant or, conversely, practically unnoticeable, then this is a reason to consult a doctor.

Important! On the days when the egg just leaves the follicle, the temperature decreases. During the period of ovulation itself, the numbers remain at a given level. And only after ovulation days the curve begins to rise upward.

To illustrate in numbers the temperature method for determining ovulation, you can give an example of a graph without deviations:

approximately from the middle of the cycle the temperature remains at 36.8°;
on the day when you see a decrease of 0.2 -0.4° - ovulation occurs. It can reach 36.6°;
the mercury column has risen to 37° and can maintain its position until the onset of menstruation;
a high mark (37°), which lasts more than 12 days, may indicate that conception has occurred;
There should be no sudden surges during ovulation; otherwise, you should consult a doctor.

approximate graph of changes in basal temperature

Thus, the basal changes, first falling, and then stably maintaining a level of up to 37 degrees.

What can affect BT?

The temperature curves shown on the graph can be influenced by a number of factors:

Less than 6 hours of sleep.
Taking oral contraceptives.
Sexual intercourse on the eve of measurement.
Stress and strong emotions.
Chronic diseases.
Excessive physical activity.
Long journeys and climate change.

Reference! In the table that you fill out after the measurements themselves and before building the graph, you must make any notes regarding the above factors. Even if there was diarrhea, this may also be the reason for changes in the digital designations in the table.

Method of contraception

If your periods come at the same time, you do not have diseases of the reproductive system, and you have measured your basal temperature for 3 months, then this method can be used as contraception. Then you will have to abstain from sexual intercourse 5-7 days before ovulation and until 6 days after it.

There is a theory about how “dangerous days” can occur. To do this, you need to draw a conditional line on the graph that intersects the symbol 37°. From the day when the instrument shows 37°, you need to count 6 days ago and 6 days ahead. With a 28-day cycle, the egg is released on the 14th day. Such figures are taken on the basis that sperm can live in the uterus for up to 6 days, waiting for fertilization.

14-6 = 8 days from the start of menstruation is a dangerous moment;
14+6= 20 days from the start of menstruation may be the last dangerous day in the cycle.

Based on this, in order to avoid pregnancy, you can have sex on days 1-7 from the beginning of menstruation, and after that on the 21st day of the cycle.

Important! Construction and accounting of the basal schedule for those girls for whom the day of intersection of the line with 37° constantly changes in different months; a method of contraception of this kind is not effective. Similar nuances may arise if the menstrual cycle is shortened.

Conclusion

Basal temperature measurements are influenced by many factors discussed above. Sometimes a lack of a tenth of a degree leads to a stressful situation. Therefore, doctors do not recommend using this method to determine the day of cell release, excluding only the most necessary cases. Other methods that are more gentle on women’s emotions and experiences have long been known, some of which allow you to determine the day of ovulation, while others can be used as contraception.

References

Obstetrics and gynecology: diagnosis and treatment. Tutorial. In 2 volumes. DeCherney A.H., Nathan L. 2009 Publisher: MEDpress-inform.
Clinical recommendations. Obstetrics and gynecology. Savelyeva G.M., Serov V.N., Sukhikh G.T. 2009 Publisher: Geotar-Media.
Women's reproductive health. Guide for doctors. O.A. Transplant. 2009, M.: Medical Information Agency LLC.
Gynecology. National leadership. Kulakov V.I., Savelyeva G.M., Manukhin I.B. 2009 Publisher: Geotar-Media.
Gynecology from puberty to postmenopause: Practical. guide for doctors / Ed. Academician RAMS, prof. Aymazyan E.K. 2006 Publisher: MEDpress-inform.
Gynecological endocrinology. Ovsyannikova T.V., Prilepskaya V.N., Serov V.N. 2008 Publisher: MEDpress-inform.

Previously, it was believed that it was possible to determine a possible pregnancy, ovulation or gynecological disease only after passing a huge number of tests.

Today, such a myth will help dispel a simple basal temperature chart that any woman can independently draw up. He will not give an exact answer, like a doctor, but he will show him and you what is happening to the female body. This article will provide graphs of basal temperature with examples and explanations, as well as why basal temperature is needed and what it means.

when you can’t get pregnant for many months;
risk of possible infertility;
hormonal disorders.

In addition, measuring BT helps increase the chances of successful conception and the ability to plan the gender of the child. A template or sample basal temperature chart can be downloaded online.

Many women do not take basal temperature measurement seriously, believing that it is a mere formality that is of no benefit. However, this is not the case. Thanks to the BT readings, the doctor can determine the following points:

establish how the egg matures;
determine the ovulatory period;
approximate date of next menstruation;
It is not uncommon for BT readings to determine possible endometritis.

It is necessary to measure BT over 3 cycles, this will provide more accurate information about the date of favorable conception. An experienced gynecologist will help you decipher the graph readings. You can also see an example of basal temperature graphs on the Internet online.

Thermometer for measuring BT

For the measurement, one type of thermometer is used; it is not changed during the measurement. Thus, it will be possible to see the norm or deviations on the basal temperature graph.

A mercury thermometer measures the temperature within 4-5 minutes, and an electronic one 2 times faster. Do not forget to wipe the device with an antiseptic before and after each measurement and let it dry before use.

Correct BT measurement

Accurate and effective plotting requires compliance with certain rules:

BT measurement should be daily, if possible, during menstruation or at the time of respiratory illness;
Temperature measurements are taken in the rectum, mouth or vagina. The main rule is that the measurement location does not change throughout the entire cycle. Doctors still strongly recommend measuring vaginal temperature. If BT is measured rectally or vaginally, then the narrow part of the device is carefully inserted into the desired location for 3-4 minutes;
You need to measure BT immediately in the morning after waking up without getting up, this is a strict rule, and at the same time. Measuring basal temperature an hour after sleep or during the day may not give accurate results;
The measurement is carried out only in a lying position. Therefore, you will need to prepare your thermometer in the evening and place it next to your bed. If you need to go to the toilet, you will also have to wait a couple of minutes here. Excessive activity will give unreliable results;
After measuring BT, readings are taken immediately. If this was done after 2-5 minutes, then the result is considered invalid;
keep in mind that intimate relationships in the evening or in the morning, as well as flights, too active sports and colds may incorrectly affect the correctness of the basal temperature result;
BT must also be measured after 4 hours of continuous sleep.

BT information table

The table for determining BT should include the following items:

day of the month, year;
cycle day;
measurement result;
additionally: here you need to indicate all the parameters that can affect BT. These include: vaginal discharge, having sex the day before, allergic reactions, viral diseases, taking medications, etc.

A detailed description of these factors will help the doctor most accurately determine the time of conception. If desired, a basal temperature chart can be downloaded from any medical website related to gynecology.

Changes in BT relative to the cycle

Note that BT changes depending on the cycle, or rather its time.

So, during the first phase of the cycle, when only the maturation of the egg occurs, BT is low, gradually dropping to a minimum, then it rises again. The difference between the highest and lowest BT is from 04 to 0.8 degrees.

If measured at the time of menstruation, the temperature will be exactly 37 degrees, and after ovulation ends it rises to 37.1-37.1 under the influence of progesterone.

If the graph showed that BT in the first phase is much higher than in the second, then there is a clear lack of estrogen. You may need to take hormonal medications. In the case when the second phase is characterized by a low temperature in relation to the first, then we are talking about low progesterone.

When both cycles are persistent, this indicates ovulation has occurred. If in the second phase there is no increase in BT, then most likely there was no ovulation, i.e. the egg did not come out.

The BT chart is a fairly convenient and modern way to determine ovulation, which is an integral part of planning a successful pregnancy. The results of basal temperature will also be useful before going to the gynecologist.

Explanation and examples of BT charts

When the graph is constructed correctly and the woman followed all the recommendations in its preparation, it allows not only to determine the presence of ovulation, but also possible pathologies of the genital area.

On the graph you can see an overlapping line that is drawn on top of six temperature values, precisely in the first phase. This is what a normal basal temperature graph looks like, without pathologies or deviations. We do not take into account only those days where the result could be distorted under the influence of taking medications, viral diseases, sexual contact the day before, etc.

Effects of ovulation

To determine ovulation, you need to use standard rules:

pay attention to the midline and 3 BT results, the difference in two out of three cases should be at least 0.1 degrees. If these are the results in the table, then after 1-2 days you will be able to observe a clear ovulation line.

Duration of the second phase

As we found out, the BT graph is divided into two phases, we can see this in the photo above, where the vertical line is located. The normal cycle in the second phase is from 12 to 17 days, but most often 15.

As practice shows, quite often there is a deficiency in phase 2. If you note that this phase is 8-10 days shorter, then this is a serious reason to consult a doctor.

If we talk about the BT norm, then its difference between the first and second phases is about 0.4-0.5 degrees, but no more.

Two-phase cycle and its norm (normal two-phase schedule)

On this graph, it is necessary to note an increase in BT by no more than 0.4 degrees.

If you look at the example graph above, you can see that 2 days before ovulation, BT decreases.

Hormonal deficiency: progesterone estrogen

With this deficiency, you will notice a significantly weak rise in BT, and the difference in the first and second phases will be no more than 0.2 degrees. When a similar phenomenon is observed for more than three cycles in a row, then we can talk about serious hormonal imbalances. As for pregnancy itself, it can occur, but at the same time there is a high risk of miscarriage.

Also, do not forget about anovulatory cycles. This can happen in a woman’s life up to three times a year. However, if the number of such cycles exceeds 3-4, then this is a serious reason to consult a doctor.

In the graph below you can clearly see the absence of ovulation:

Hormonal deficiency: estrogens

If at the end of the graph, a woman observes large differences in BT, and the line itself is in a chaotic state, then we can talk about a lack of estrogen.

A deficiency of this hormone can also be noticed by an increase in temperature in the second phase to 37.2, sometimes to 37.3.

Note that the increase in temperature is very slow and can last up to 5 days. In this case, it cannot be said that this basal temperature will be perceived by the doctor as normal.

Below in the graph you can see how estrogen deficiency manifests itself.

Basal temperature (BT) is the lowest body temperature per day that is achieved during sleep. It is measured rectally, at rest, immediately after waking up.

Keeping a chart and measuring basal temperature after ovulation helps in planning and diagnosing pregnancy.

What is basal temperature

Measuring BT helps determine the state of hormonal levels, as well as the fertile phase of the cycle.

Its performance is influenced by many factors:

poor sleep (lack of sleep, frequent awakenings, etc.);
psycho-emotional tension, stress;
gastrointestinal diseases (for example, diarrhea);
drinking alcohol;
physical exercise;
sexual intercourse;
cold;
taking certain medications;
climate change.

These factors must be taken into account when drawing up the schedule.

BBT is important for assessing the menstrual cycle. Knowing the norms and comparing them with your own indicators, you can determine violations and even the presence of diseases of the reproductive system.

In the first (follicular) phase of the cycle, the BT level ranges from 36.1 to 36.7 degrees;
A day before ovulation, there is a drop in temperature of 0.5 degrees;
During and after ovulation, the indicator reaches 37-37.4 degrees;
The basal temperature after the day of ovulation and the remaining time before menstruation remains at 37 degrees;
It drops to 36.7-36.8 a couple of days before the start of menstruation.

Deviations from the above figures are also possible. This indicates the normal course of the cycle. The main thing is that there is no difference between the phases of more than 0.4 degrees.

Know! Even in healthy women, the temperature can remain at the same level throughout the cycle. This indicates an anovulatory cycle, that is, a cycle without ovulation and the development phase of the corpus luteum.

In this case, menstruation comes on time. This is a rare phenomenon that is more typical during puberty or menopause.

Basal temperature charts

To build a reliable graph, you need to know how to measure basal temperature:

It is necessary to measure the temperature immediately after sleep; you should not get up. Usually measured after a night's sleep, it should be at least 4-5 hours;
Measured rectally. There are also vaginal and oral methods, but they are not standard;
Use the same thermometer for measurements. Prepare it in the evening (knock it down and put it closer). Extra movements before measurement are not necessary;
Hold the thermometer by the top so as not to throw off the readings.

The graph must be kept daily, marking the result obtained with a dot, and then connecting all the dots with a line. Usually, a schedule is drawn up not for one cycle, but for several. The graph of one cycle is not very informative.

A graphic image will help track changes in hormonal levels during the cycle. To construct, you can use a ready-made graph, of which there are many on the Internet. Or you can draw it yourself.

The horizontal X axis shows the days of the cycle, and the vertical Y axis shows the temperature. The result is marked on the graph with a dot, and then the dots are connected to each other.

How to determine ovulation

In the first part of the cycle, the dominant hormone is estrogen.

It stimulates the restoration of the functional layer of the endometrium, its thickening, and increases the secretion of mucus in the cervix;
The increased content of estrogen in the blood stimulates the contraction of smooth muscles, microvilli of the fallopian tubes, facilitating the advancement of sperm to merge with the egg;
The normal value for this phase is 36.1-36.7 degrees.

During the ovulatory period, luteinizing hormone is released.

This hormone is responsible for the appearance of an egg (for ovulation);
When this hormone is released into the blood, estrogen and BT decrease (by 0.5 degrees). This lasts for 24 to 48 hours;
A longer drop in temperature may indicate problems with the ovaries;
This is the most favorable time to conceive.

How else can you determine ovulation:

for pain in the ovary;
by changes in cervical fluid.

After ovulation, the basal temperature increases to 37 degrees. Its increase is influenced by progesterone. It is he who predominates in the second part of the cycle, preparing the uterus for implantation of the zygote.

Basal temperature after ovulation

If fertilization has occurred, the basal temperature after ovulation remains at 37-37.4 degrees. In some cases, the indicator allows you to determine conception before the delay.

There is such a thing as “implantation retraction.” This is a decrease in BT on days 5-12 after fertilization. After this, the indicator returns to normal and does not fall anymore.

Important! If conception has occurred and the temperature has dropped, there is a high risk of miscarriage.

Sometimes the temperature drops after ovulation. It may say:

About the deficiency of the corpus luteum;

The problem in this case is low progesterone levels. It is this hormone that is responsible for raising the temperature and preparing the endometrium of the uterus for implantation of the fertilized egg.

Progesterone also prevents the onset of menstruation.

About the death of the egg;

If fusion with the sperm does not occur, the egg dies. Its viability is only 12-24 hours (less often up to 48).

Due to the absence of a zygote (fertilized egg), the hormone level drops and the BT indicator decreases.

Important! If BBT remains at the same level after ovulation, this may indicate hormonal problems. Progesterone deficiency may be a symptom of improper ovarian function.

There are many factors that cause progesterone deficiency and luteal phase dysfunction. They may be associated with pathologies of the reproductive system, disorders of its functions, etc. Only a doctor can determine this, based on additional diagnostics and test results.

Symptoms indicating low progesterone:

problems with conception;
short menstrual cycle;
early termination of pregnancy.

How to determine conception using a basal temperature chart

In order to determine pregnancy using a chart, it is necessary to maintain it continuously for several cycles.

If the basal temperature rises after ovulation, there is no usual decrease in the indicator, pregnancy can be assumed. Usually the indicator stays at around 37-37.4 degrees.

Important! Temperatures above 37 degrees in the first phase and 37.5 in the second phase may indicate an inflammatory process occurring in the body. For diagnosis and treatment, you must consult a doctor.

It is possible to measure BT to determine conception, but this is not the most reliable way, since it can be influenced by many third-party factors.

This method will be more useful for determining ovulation and favorable days for conception.

To learn how to prepare for pregnancy and conceive a healthy baby, see the online course

For most girls planning their pregnancy, measuring basal temperature can be called an indispensable method in this matter. With its help, you can determine favorable days for conception.

Also, measuring basal temperature is important for women who adhere to the calendar method of contraception. This method suggests that these days you should take contraception seriously, as there is a high risk of getting pregnant.

The concept of “Basal temperature”

Basal temperature is the lowest temperature that the human body reaches in a state of complete calm. As a rule, this time comes after a long sleep (at least 5 hours). As soon as a woman begins to perform any movements, the temperature rises significantly, which is no longer acceptable for the correct construction of a graph.

Hormones influence basal temperature. A woman with a healthy body experiences a monthly sequence of phases of the menstrual cycle - luteal, ovulatory, follicular. During each phase, one or another hormone predominates. Their level and quantity is reflected in the basal temperature.

Basal temperature options

Gynecologists advise measuring BT and drawing graphs for the following purposes:

if you have not been able to get pregnant for a year;
when doubts arise about the infertility of a partner;
if there is a risk of hormonal imbalances.

In addition, basal temperature helps in other situations:

determine the most optimal day for conception;
helps in planning the baby’s gender;
understand the work of the body, the processes that occur.

Building a graph provides answers to the main questions:

whether the egg has matured;
whether there was ovulation after the egg matured;
how well the endocrine system works;
identify the presence of gynecological problems;
time of next menstruation;
whether conception occurred;
determine how well the ovaries secrete hormones at different phases of the menstrual cycle.

Measuring basal temperature to determine ovulation

When a young couple comes to see a doctor, the specialist asks a lot of questions. Measuring basal temperature is on the list of frequently asked questions. By keeping temperature records, you can determine the presence or absence of reproductive or hormonal disorders in a woman’s body. According to the graph, you can determine conception already at the earliest stages.

If, when measuring the temperature, it often has a high mark, then the woman may have serious diseases, such as endometritis.

Measuring basal temperature indicates impending ovulation. By creating schedules, you can already plan your pregnancy in advance, and also decide on the days when it is best to conceive a baby.

In addition, basal temperature can detect anovulation, i.e. lack of ovulation. Every woman can have such moments throughout the year. If such a pause occurs frequently, you should see a gynecologist.

Each body is individual, therefore, so is the menstrual cycle. Statistics show that ovulation occurs 14 days before the start of the expected cycle.

before ovulation;
during;
after.

Phases of the menstrual cycle

At the initial stage of the first cycle, estrogen progresses in a woman’s body. Under the influence of this hormone, the temperature remains low. In the last phase the situation changes completely. Progesterone is released, causing a significant increase in temperature.

The difference between cycles is from 0.4 0 C. When observing such changes, we can assume that ovulation went well. It is possible that the basal temperature drops sharply during ovulation, then rises. In any case, the third phase occurs at elevated temperatures.

Ovulation process

A mature and fully prepared egg leaves the follicle. The meeting with the sperm takes place in the abdominal cavity. Such an “event” can only happen within 24 hours. Therefore, for everything to happen successfully and fertilization to occur, the sperm must already be in the tube.

Measuring basal temperature during ovulation

One of the main questions when planning pregnancy is “How to measure basal temperature to determine ovulation?” Basal temperature must be measured in the morning at the same time (small deviation is allowed, no more than 30 minutes). A woman should lie on her side without getting out of bed (preferably on the left, it’s easier to insert the thermometer). Without sudden movements, insert the thermometer into the rectum. If you use an electronic thermometer, the measurement will take no more than three minutes. These indicators are recorded in a table or recorded on a graph by measuring basal temperature.

In the initial phase, the temperature is 36.0 or 36.5 0 C (small fluctuations of no more than 0.1 0 C are permissible). What should be your basal temperature during ovulation? On the day when ovulation occurs in a woman’s body, the basal temperature rises to 37.0 or 37.3 0 C.
Throughout the entire measurement period, which is at least 3 menstrual cycles, it is recommended to use 1 thermometer. The new schedule begins on the first day of the cycle.

Situations cannot be ruled out when you need to get up at night, then the measurement should be made after 6 hours, otherwise the readings will be incorrect. In addition, it is worth considering that when body temperature rises due to illness, BT will also increase. This fact should also be recorded when plotting the graph.

Computer graphics

In the modern world, girls are increasingly using the help of the Internet in everyday affairs. Even in such a simple matter as plotting a graph, many people use special programs. All you need to do is measure the temperature and enter the data into the program. She, in turn, will be able to calculate the expected date of ovulation, draw a graph and be able to calculate the temperature difference between the phases.

Factors influencing thermometer readings

Basal temperature during ovulation, if measured every morning, a woman may notice some deviations, this indicates an incorrect measurement method or problems in the body. In addition to all this, some factors may affect the data:

If the temperature is measured a couple of hours earlier or later, the thermometer may show false results. As a rule, measurement is carried out after continuous sleep of at least 3 hours. If the rest is much shorter, this will affect the result.
Common causes of incorrect readings include: sex at night or before taking the temperature, drinking alcohol, using a heating pad, stress and some diseases.

If for any reason situations arise that affect the temperature increase or decrease, then this must be recorded in your schedule.

Basal temperature after ovulation

When taking daily measurements, most girls are interested in basal temperature after ovulation. Basal temperature after ovulation and before the onset of menstruation have different values, which depend on the phase of the cycle. If there is a discrepancy, this means that it is time to visit your treating gynecologist.

During ovulation, progesterone plays a major role. In the place where a wound forms in the ovary, a corpus luteum appears. At this point in the cycle, the hormone is responsible for fertilization - it prepares the endometrium to welcome the fertilized egg. In addition, it plays a very important role in maintaining pregnancy. Basal temperature after ovulation, with a positive result, remains in the range of 37.0 - 37.5 0 C. Similar indicators are observed during the second cycle and during the entire pregnancy.

If the result is positive (fertilization), the embryo moves to the uterus. After 7 days it is attached to the wall. On the graph, this action can be seen in the form of a slight decrease in temperature by a couple of tenths of a degree. This decrease occurs for only 1 day, then the indicators return to normal. This retraction has a scientific name - implantation.

However, not every girl can see such a change, since everyone’s body is individual and the reaction to the attachment of the fertilized egg is unpredictable.

The basal temperature indicator is different for everyone: in some patients, pregnancy proceeds calmly even at a temperature of 36.9 0 C. Therefore, there are simply no clear criteria for what the basal temperature should be during pregnancy. The only diagnostic indicator is the absence of a decrease in temperature after ovulation has occurred.

Fertilization and basal temperature

If fertilization has occurred, the basal temperature after ovulation increases. Also, an increase in temperature indicates the long-awaited conception even before the delay begins. Since the temperature drops before menstruation, but this does not happen during conception, this fact can be noticed when plotting a graph. To verify your assumptions, you should take a pregnancy test on the very first day of your delay.
Despite such arguments, gynecologists do not recommend relying on BT to confirm conception. A high basal temperature after ovulation may indicate gynecological problems and infectious diseases.

Plotting a graph

To build a measurement schedule, you need to record the thermometer readings every day in the morning. Electronic devices have a number of advantages: their indicators are more accurate, and they produce the finished result much faster.

If there are factors during measurement that affect the readings, this must be recorded in a separate column. Such actions are necessary for a more accurate analysis.

When plotting a graph, all correct readings are connected by a straight line; days with deviations are indicated by a dotted line.

In addition to the thermometer indicators, women who approach pregnancy planning with full responsibility create another column. It records the discharge, its consistency, color and volume.

Ovulation line on the chart

When the basal temperature chart during ovulation is carried out in accordance with all recommendations, then you can easily monitor the characteristics of the female body and a number of concomitant diseases. For a woman wishing to become pregnant, determining basal temperature is necessary to determine the favorable moment of fertilization. During this very period, this indicator will have a low value.

After the long-awaited day, the temperature will rise for three days. The difference between the values should be no more than 0.1 0 C for two days out of three, or not less than 0.2 0 C for one day out of two.

If everything is done correctly, it will not be difficult for a woman to draw the ovulation line. It is this point that is important when constructing a schedule, since on a certain day + 2 “spare” days there is a high probability of conception.

Temperature difference on the graph

The difference between the average values of the two phases should be less than 0.4 0 C. If the basal temperature is lower, this indicates hormonal problems in the female body. To confirm the suspected diagnosis, it is necessary to take tests for progesterone and estrogen.

The temperature will be higher when a woman has an increased amount of progesterone in her blood (7.6 - 12.7 nmol/l). It is possible that increased temperature will be observed in the second phase of the cycle.

The day when there is a sharp change in temperature is considered by gynecologists to be the most suitable for conceiving a child. The day before the bubble bursts, the BZ on the chart noticeably decreases. From the moment the ovarian wall breaks through, it increases noticeably. Here many people are concerned about what the basal temperature should be during ovulation? The thermometer during this period and for another 4 days will show about 37 0 C.

If fertilization has occurred, then the basal temperature after ovulation remains between 37.3 and 37.5 0 C.

It is important to note that if the basal temperature is normal and there is no ovulation, the patient may be diagnosed with “Nonovulating Follicle Luteinization Syndrome” upon examination and certain tests.

Fever

The temperature measurement schedule is divided into 2 phases. The division occurs at the place where the ovulation line passes on the graph. Phase 1 is located in front of it, the second, naturally, after it.

During the first cycle, a predominance of a hormone such as estrogen is observed. It affects the basal temperature before ovulation occurs, so it will be between 36.2 and 36.5 0 C. If the figure is higher, then most likely there is a shortage of this hormone in the female body. As a rule, the temperature is 36.5 and 36.8 0 C. To compensate for the lack of estrogen, the doctor prescribes a special remedy.

Reduced temperature

During the second phase of the cycle, the basal temperature changes significantly - by four tenths of a degree. When the measurement is carried out rectally, the temperature reaches 37.0 0 C, sometimes more. In a situation where the difference is less than 0.4 0 C, there is a possibility that negative processes are occurring in the female body. You should see a specialist.

However, some exceptions are possible here too. Due to the fact that each woman’s body is individual, therefore, the temperature at any phase may differ slightly. Therefore, doctors advise keeping a schedule of at least three menstrual cycles.

Basal temperature in numbers

To summarize all the above data and easily remember important indicators, just use a short but understandable list:

From the first to the last day of menstruation, the temperature is 37 0 C.
After 4 days it drops to 36.5 - 36.8 0 C.
Before the rupture of the bladder, a slight decrease of 0.1 - 0.2 0 C is observed, after which a sharp increase occurs, which indicates the release of the egg from the ovary.
In the second phase, the basal temperature rises to 37.1 - 37.3 0 This temperature lasts no more than 4 days.
A few days before this, there is a sharp drop within 36.8 0 C.
With the onset of a new cycle, everything repeats in the same way.

Basal temperature allows you to determine the time of ovulation, early pregnancy, and the presence of inflammatory gynecological pathologies. With correct and regular measurements and scheduling, you can identify the most favorable days for conception; any deviations indicate a malfunction in the body.

You need to know your basal temperature to determine ovulation

What does basal temperature mean?

Basal temperature (BT)- the lowest temperature of the human body at rest. Measurements can be taken orally, in the armpit, but the most accurate values are rectal, when the thermometer is inserted into the rectum.

Why do you need to measure BT:

– the method is suitable for long, short, standard and irregular cycles;
you can determine pregnancy even before the delay;
identify inflammatory pathologies of the pelvic organs in the early stages before symptoms appear;
for pregnancy planning.

To measure BT, it is better to use a regular mercury thermometer and use the same thermometer throughout the entire cycle.

How to measure BT?

In order to correctly draw up a schedule and avoid errors, when measuring basal temperature, you must strictly follow the sequence of actions.

Measurement Rules:

In the evening, prepare a thermometer, knock it down, put it next to the bed so that you can easily reach it.
In the morning, without getting out of bed, insert the tip of the thermometer 5 cm into the rectum.
Measure the temperature for 5-7 minutes, try not to get nervous, breathe evenly and calmly.
Before taking your temperature, you should have at least 5–7 hours of restful sleep.
BT must be measured at the same time; deviations of 1 hour up or down are allowed. The indicators are recorded from the first day of the menstrual cycle, the data is entered into a special chart.

You can measure BT during the day after 4 hours of sleep, but such data is often unreliable. The method is suitable for women who have been working at night for many months; their body has had time to adapt to a new sleep and wakefulness pattern.

With the correct schedule, after 3 cycles you can learn to plan a pregnancy at home; signs of the inflammatory process will be noticeable after 1–2 months. In gynecology, average BT temperature values are used to assess the state of the reproductive and genitourinary systems, but deviations often occur that are caused not by pathologies, but by the individual characteristics of the body.

How to build a graph correctly:

Draw 2 lines on a checkered sheet of paper; they should start from the same point and be perpendicular.
On the vertical axis, make markings for temperature indicators - write down the numbers from 36, 0 to 37.5, each cell is equal to 0.1 degrees.
You need to mark the days of the calendar on the horizontal line.
At the level of 37 degrees, draw a red horizontal line, draw a vertical line between 12-14 days, it conditionally divides the two-phase cycle into periods I and II.
Every day, place a dot at the intersection of the date and temperature values; when they are connected, a curve of the monthly cycle is formed.
On the graph, the day of ovulation is the highest point.
The optimal difference in indicators in phases I and II is 0.4–0.5 units.
The length of the cycle is also clearly visible on the graph; normally it is 28 days; doctors do not consider pathologies if the interval between menstruation is 21–35 days. But a long or short cycle may be a sign of ovarian failure.

Thanks to the BT chart, you can understand how well your menstruation is proceeding

Decoding the BT schedule allows the woman, and, if necessary, the gynecologist, to check how normally the cycle is proceeding, whether maturation and ovulation are occurring, and whether pregnancy has occurred.

In addition to temperature indicators, the graph should display the amount and nature of discharge and general well-being. If the day before a woman drank alcohol, had sex, was very nervous, or showed signs of a cold, all these factors are also recorded in the table, since they can distort the BT values.

How does the BT indicator change?

Changes in basal temperature indicators are influenced by the state of hormonal levels, so fluctuations in values in different phases of the cycle are normal.

BT value by day of the cycle

When measuring BT, the length of the cycle is also important; the ideal duration is 28 days, but intervals between menstruation of 21–35 days are considered normal. The length of the first phase may vary, but the normal luteal period should always be 12–14 days.

Basal temperature phases

When drawing up a BT schedule, several types of curves are distinguished, which makes it possible to assess the state of the reproductive system.

Types of curves:

I – temperature indicators in the second phase increase by at least 0.4 units, the luteal period lasts 12–14 days, the values decrease before ovulation and menstruation. This schedule corresponds to a normal two-phase cycle lasting 28 days.
II – luteal phase lasts 12–14 days, during this period the temperature rises by no more than 0.2–0.3 degrees, and decreases slightly before the release of the egg from the follicle and before the onset of menstruation. Such a curve indicates a lack of estrogen and progesterone, which often causes infertility; special tests will help to assess the level of hormones in each phase of the cycle.
III – an increase of 0.4 degrees is observed only shortly before menstruation, the second phase lasts 10 days or less, and BT does not drop before menstruation. Such a graph indicates luteal insufficiency, which is fraught with the development of infertility and miscarriage; correction is carried out using hormonal therapy.
IV – there are no ups and downs on the curve, the entire cycle, the rectal temperature is in the range of 36.1–36.7 degrees, there is no ovulation, the cycle is considered anovulatory. In a healthy woman of fertile age, such a deviation occurs 1-2 times a year; if more often, it is necessary to undergo hormonal tests.
V – the BT curve looks chaotic; an increase and decrease in values occurs regardless of the phase of the cycle. This graph indicates low estrogen levels, and the chances of getting pregnant are minimal. Single jumps in indicators can occur due to stress, after a long flight, or during exacerbation of any chronic diseases.

Knowing the exact day of ovulation, you can plan the sex of the unborn child - if fertilization occurs directly on the day the egg is released, there is a high probability of giving birth to a boy. Girls are born after sex, which took place 48–72 hours before ovulation.

Reasons for deviations from the norm

Minor fluctuations in BT values occur during stress, climate change, after sexual intercourse, and while taking certain medications. Strong deviations of the curve from the norm are a sign of endocrine pathologies, inflammatory processes; using the graph, the primary cause of infertility can be established.

Uterine fibroids are one of the causes of basal temperature failure

Why deviations occur:

Problems in the luteal phase - ovarian diseases, pathologies of the thyroid gland, pituitary gland, endometriosis, uterine fibroids, polyps and tumors in the genital organs. Progesterone deficiency is observed during inflammatory processes in the uterus and appendages, diseases of the liver and gastrointestinal tract, after exhausting diets and excessive physical activity.
Frequent anovulatory cycles are observed in adolescence, indicating the approach of menopause, endocrine diseases, and ovarian pathologies.
An increase in temperature before menstruation to 38 degrees or more – endometritis, adnexitis, endometriosis, cystitis, intestinal infections, ectopic pregnancy. Additional symptoms are sharp pain in the lower abdomen, discharge mixed with pus, discomfort when emptying the bladder, vomiting, weakness.

During pregnancy, an increase in BT indicates inflammatory processes in the pelvic organs and infectious pathologies in the body. A decrease in indicators occurs with a miscarriage or frozen pregnancy.

Measuring BT is a simple and accessible method for self-diagnosis of the state of the reproductive system and hormonal levels, allowing you to track disorders of various origins in the early stages. Minor and short-term deviations from the norm occur under the influence of external factors - overwork, stress, regular fluctuations indicate endocrine and inflammatory diseases.