Correct measurement of basal temperature. Apps for IOS and Android. Elevated basal temperature

Doctors say: every woman should be able to measure basal body temperature. This indicator will help you learn about the onset of ovulation, pregnancy and various health disorders. There are other reasons why you need to learn this. For some women, this method allows you to calculate safe days during which the risk of getting pregnant is minimal. Others, on the contrary, use it in order to guess the most favorable days for conception. However, whatever the ultimate goal, a woman needs to have a clear idea of ​​how to correctly measure the basal temperature, at what time the procedure is performed and what to do with the results.

What is basal body temperature (BBT)

In the medical literature, basal temperature is described as the lowest body temperature immediately after waking up. It can be measured in three different ways: oral, vaginal and rectal. At different periods of the menstrual cycle, its indicators, depending on the production of certain hormones, will change.

  1. Follicular phase, is counted from the first day of menstruation until the onset of ovulation. During this period, the hormones estrogens dominate in the woman's body, and the average BTT values ​​are kept at the level of +36 ... +36.5 ° С. The duration of the phase ranges from 10 to 20 days and depends on the rate of egg maturation. The less time remains before ovulation, the lower the temperature indicators drop.
  2. Ovulatory phase... The day before the onset of ovulation, the temperature decreases by 0.2-0.3 ° C.
  3. Luteal phase, begins with a sharp increase in BTT. During this period, the temperature ranges from +37 to +37.2 ° C, the hormonal background changes, the main role is played by the hormone progesterone. The third phase lasts 12-16 days. If pregnancy has not occurred during this time, 1–3 days before the onset of menstruation, BT decreases by 0.2–0.3 ° C. Please note: the difference between the temperature indicators of the follicular and luteal phases must be at least 0.4 ° C.

Measurement rules

To correctly measure the temperature, several rules must be strictly followed. They are important for the competent drawing up of a schedule, on the basis of which it will be possible to draw conclusions about the changes taking place in the body.

  • As noted earlier, there are three ways to measure BTT. Doctors say that the most accurate indicators can be obtained using the rectal method. However, if this option is not to your liking, choose the most suitable one. Just remember to adopt one method and stick to it all the time. Otherwise, the graph will turn out to be inaccurate, and the picture of the changes taking place will be distorted.
  • Any thermometer is suitable for measuring temperature indicators: from classic mercury to advanced electronic. However, for the accuracy of the readings, it should be remembered that the device should be used the same, since each type of it has its own error. And a discrepancy of even 0.1 ° C can turn out to be critical when drawing up a schedule.
  • Measurements of BTT must be carried out every morning at the same time. An error of 20-30 minutes is allowed. Immediately after waking up, do not make sudden movements or get out of bed. Therefore, prepare the thermometer in the evening: shake it and put it at arm's length. Make sure you sleep at least 6-8 hours.
  • If at night you had to get out of bed, then take measurements no earlier than in 5-6 hours. Otherwise, the indicators will be incorrect, and this day may not be taken into account at all when drawing up the schedule. You should not take measurements on days when you are sick, as the body temperature will be higher than usual. You can measure BBT even if you overslept during the procedure. Just indicate on the graph that it may not be accurate.

Features of scheduling BTT

The correctness of charting basal temperature depends on several factors. For the data to be correct, stop drinking alcohol and avoid stressful situations. Inaccuracies can also arise with illness, insomnia, frequent jet lag, and even because of sexual intercourse a few hours before waking up. It will not be possible to draw up a correct schedule if a woman is using oral contraceptives. These drugs affect the hormonal background, and BT on any day remains practically unchanged: there will be slight ups and downs, but the peak characteristic of ovulation cannot be traced.

Temperature measurement must be started from the first day of menstruation. Write down the received data on a piece of paper or keep charts in a special online program. If you prefer the second option, then all you have to do is enter BT data into a spreadsheet every day. The program will do the rest itself. She will draw a graph, determine the time of the onset of ovulation, indicate the temperature difference between menstrual phases, etc.

During the period of measurement of BBT, give up alcohol and avoid stress.

However, don't think that manual scheduling is much more difficult. To do this, you will need a piece of paper (preferably checkered), a ruler, a pencil, and a pen. On the prepared sheet, draw 2 lines - vertical and horizontal. Mark the degrees vertically, and mark the days of the cycle on the horizontal bar. Put a full stop in front of the corresponding indicators every day. Then connect them in series, and you will clearly see where ovulation begins, how much the temperature rises in the luteal phase and how it decreases before the onset of menstruation.

In addition to digital data next to the graph, it is advisable to additionally indicate factors that may affect the temperature readings. For example, whether alcohol was consumed that day, whether the body was subjected to increased physical exertion. Some women, in addition to household factors, indicate the nature of the discharge (viscous, watery, yellowish, bloody). Remember: to trace the pattern of changes in BBT, you must measure it at least 3 menstrual cycles in a row.

Decoding of BT indicators

Now you know how to correctly measure basal temperature. However, in addition to scheduling, you need to be able to navigate the recorded indicators. After all, a deviation from the norm can signal inflammation or hormonal disruptions occurring in the body. As you know, normal BT during the follicular phase, depending on the characteristics of the organism, ranges from +36.2 to +36.8 ° C. And if during this period it is kept at around +37 ° C and above, then this may be a signal of hormonal disorders, in particular of insufficient amount of estrogen. It is worthwhile to be wary also when the temperature in the first phase becomes higher than the expected norm for several days, and then again drops to normal values. Such signals indicate inflammatory processes in the genitourinary system.

In the middle of the cycle in the ovulatory phase, the basal temperature first drops by several points, and then makes a sharp jump up. It is these 3 days that are considered the most favorable for conceiving a child. And on the contrary, if you do not intend to become a mother in the near future, then during this period it is necessary to use additional contraception. The optimal period for using contraceptives is 4 days before ovulation and 3-4 days after.

If the temperature readings are below normal in the luteal phase, then this can also signal a hormonal imbalance. Only during this period there is a lack of progesterone. If the menstrual cycle proceeds normally, then before the onset of menstruation, the basal temperature drops. An even temperature schedule may indicate that fertilization has occurred and pregnancy has begun to develop. There are times when a woman does not have any drops and rises in temperature. And if such a situation is not associated with the use of oral contraceptives, then perhaps these indicators serve as a signal that ovulation is not occurring.

Sometimes a spontaneous miscarriage can be tracked using the BBT chart. At the head of the corner in this case are two indicators: the temperature range is below normal and the absence of menstruation. Therefore, gynecologists do not recommend stopping basal temperature tracking until 12-14 weeks if your goal is pregnancy and the birth of a baby. At the beginning of pregnancy, BBT is kept at +37 ° C or more (deviations by 0.1–0.3 ° C are possible). A sharp decline, as well as a sharp increase, will signal that pregnancy is at risk and additional measures need to be taken to keep the baby. After 14 weeks, the BBT schedule becomes uninformative, since the hormonal background completely changes.

Basal temperature indicators will help not only plan pregnancy, but also track the occurrence of various diseases. But do not rush to rush to extremes and draw any conclusions only on the basis of the drawn up schedule. To identify the pathology, you will need full diagnostics: you need to pass laboratory tests, undergo an ultrasound scan, etc. If you care about your health, you will be happy to use the knowledge of how to measure basal temperature correctly.

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Among the methods that allow you to calculate the date necessary for conception, rectal temperature measurement occupies a worthy place. Consider the basic rules on how to measure basal temperature to determine ovulation and a video with the recommendations of experts on scheduling and reading it correctly.

Features of basal temperature measurements

Ovulation is a short period in the menstrual cycle, approximately halfway between the two phases. She plays an important role in the birth of a baby, so women try to calculate this day in advance in order to get the planned conception at the expected time.


The main advantage of the basal method is that the woman herself can use it at home. Of course, it does not give 100% of the result, but supplemented by some other option, for example, strip tests, it quite helps to clarify this situation.

When solving the problem of how to measure basal temperature to determine ovulation and which thermometer to use, it is worth consulting with specialists. Opinions differ here. Some believe that it is better to use an electronic thermometer, since it will more accurately show the fractions of a degree when the values ​​are lowered or raised. The second group claims that mercury thermometers are more reliable, because measurements must be carried out with one device, and electronic ones sometimes fail or break.


Measurement rules

Before measuring basal temperature to determine ovulation, reviews also confirm this, you need to know the rules for taking measurements so as not to get a distorted result. In particular:

  • the measurement should be carried out after 5-6 hours of normal sleep;
  • this is the first thing to do in the morning, without even leaving the bed;
  • no sudden movements can be made;
  • use the same thermometer.

All these basic principles of how to correctly measure basal temperature to determine ovulation, and video advice from experts indicate the importance of complete calmness of the body at this moment. Therefore, for example, even a thermometer is advised to be put on the bedside table in order to get it without getting up. And if it is mercury, then it’s even worth “shaking off” it in the evening.

Observing simple requirements on how to measure basal temperature to determine ovulation, a forum, as well as advice from friends and acquaintances, may turn out to be less informative than your own calculation of a favorable time for fertilization.

All measurements obtained should be noted on the graph daily. At the end of the cycle, the points must be connected to form a curve. Having considered the received "peaks" and "bursts", a woman will be able to understand at what point the cell entered the genital tract.

What the basal temperature graph shows

Having learned the necessary rules on how to measure basal temperature to determine ovulation, and feedback about this method, you should proceed to deciphering the resulting curve.

In the first phase of the cycle, the temperature indicators do not change, they go smoothly and are approximately 36.8 ° C. Some decrease (by fractions of a degree) occurs 1-2 days before ovulation. This indicates the maximum concentration of estrogen in the woman's blood. The newly rising temperature indicates that the production of progesterone has begun. And this phenomenon occurs directly during ovulation. The indicators gradually increase over 3 days and remain at these values ​​until the end of the second phase (37.0-37.5 ° C), since the corpus luteum at this time produces a sufficient amount of progesterone, which is necessary for normal conception and pregnancy.


Based on our experience and knowledge on the question of how to correctly measure basal temperature to determine ovulation, and expert reviews on the relevance and reliability of this method, we note that any fact in the form of stress, alcohol consumption or any medications can cause an error in the readings. Therefore, when taking a measurement, a woman should lead a calm lifestyle and all deviations caused by reasons known to her should be marked on the graph in order to get an actual result later.

Following the advice provided in the article, any woman can understand the question of how to measure basal temperature to determine ovulation, how to draw up a graph and how to understand what it shows.

We reviewed the basic principles and rules of how to measure basal temperature to determine ovulation, videos and reviews from consumers and specialists. For the completeness and reliability of the picture of the release of the germ cell from the ovary, it is necessary to supplement this study with at least one more method. Perhaps a woman should listen to her feelings throughout the cycle, or buy a test at the pharmacy to make the result more convincing, observe the nature of cervical mucus, listen to her feelings, or, finally, just do an ultrasound.

Temperature measurement to determine ovulation is one of the oldest and most time-tested methods.

Basal temperature (BT) is a reading in the rectum. It must be measured regularly in the morning without getting up. Learn how to measure basal temperature correctly

Basal (rectal) temperature

Please tell me how the basal temperature should change during the entire cycle? In the middle of the cycle, during ovulation, it rises - but should it fall after a week, or stay around 37 until the onset of menstruation? Can it increase by 19 days if the cycle is 29 days, or does it mean ovulation? Also, is it possible that ovulation does not occur every month? What needs to be done to establish exactly whether ovulation is occurring - are there any other methods?

Temperature measurement to determine ovulation

Measuring basal temperature is a fairly accurate method for determining ovulation. on the eve of ovulation, the temperature drops (but this cannot always be fixed), and the next day it rises by 0.4-0.5 degrees and remains raised until menstruation. This is called the second phase. It normally lasts 14 days. A shorter duration (10-12 days) is a failure of the luteal phase, sometimes making it impossible to carry a pregnancy. A longer duration of the second phase may indicate the appearance of a corpus luteum cyst (a gland that supports the second phase or the onset of pregnancy). Ovulation does not occur in every cycle. Only a doctor can analyze the basal temperature data and make a diagnosis based on them. there are many subtleties and nuances that need to be considered. evaluating the results.

Malyarskaya M.M.

Please tell me what is the difference between rectal temperature and basal temperature.
What does it show and what is the scheme of its change during the cycle.
Is it possible to determine pregnancy by it and how.
Is the temperature in the vagina measured, and if so, why?

Rectal temperature and basal temperature are the same thing. It is measured only in the rectum. The measurement is carried out in the morning, without getting out of bed, at the same time (6-8 hours), every day. If something changes in the mode: on Sunday you measured not at 8, but at 12 o'clock, or your general body temperature rose, or there were night rises, or intercourse the day before - in short, everything that could lead to an increase in rectal temperature , is indicated in a separate column ..

Measuring basal temperature is a matter of a couple of minutes, and the result of this method is very important. The doctor should evaluate the data of rectal temperature. Much matters: both the temperature values ​​themselves and the presence of two phases: at the beginning of the cycle, the temperature is lower, at the end - higher, and the difference between the average value of the first and second phases, and the duration of the second phase, and the minimum value before the rise. You will not be able to evaluate your schedule yourself. Pregnancy cannot be determined, you can only see that menstruation has not come, the temperature continues to remain high. But you will understand this by the delay in menstruation. During pregnancy, the temperature does not rise higher than in the second phase.

It is impossible to calculate the "dangerous" days, during which fertilization is supposedly impossible, according to the schedule. Determine pregnancy too.

This method is used to assess the hormonal state of the body. To do this, it is advisable to measure the temperature for several months, the more - the more reliable. According to the graphs, you can find out whether there is ovulation (whether the egg is maturing), whether the second phase is complete (i.e. whether pregnancy can occur), whether there are enough female sex hormones. Etc. The method is much cheaper and often more reliable than the determination of hormones in the blood ..

While taking hormonal contraceptives, it makes no sense to measure rectal temperature, it will always be the same. Taking other medications, incl. hormones need to be indicated on the chart.

The temperature in the vagina is not measured!

Malyarskaya M.M.

How to measure basal temperature correctly? Is it valid only until 8am (I measure at 9:00)? Is it possible to use an electronic thermometer? And how to explain that t rises to 37.2 at the beginning of the cycle for one day, and then t jumps from 36.2 to 36.9. What other examination can be done to determine if the egg is mature?

basal temperature must be measured in the morning before getting out of bed, within 5 minutes. The optimal time to measure it is morning (6-8 am), then every hour the temperature rises by 0.1 degrees. It is a pity that you did not show the entire graph; it is difficult to judge the temperature changes from your message. The presence of ovulation can be judged by doing an ultrasound in the middle of the cycle.

Koroleva A.G.

Please tell me if the onset of ovulation is possible in the absence of a rise in basal temperature (specific discharge from the cervix is ​​present).

Still, the most reliable sign of ovulation is a decrease, and the next day, a persistent rise in basal temperature. The rest of the signs (except for the ultrasound data of follicle maturation and laparoscopic signs) are not reliable at all.

Malyarskaya M.M.

I wanted to ask you a question, before that I wrote to you that I had problems with my period, etc., my monthly cycle was set with the help of progesterone for 36 days, but in the last monthly cycle, BT did not exceed 37.0 degrees, and today I have 33 day of the cycle, starting from the 24th day of the cycle, I have an increase in BT from 36.7 to even 37.5, today 37.0, does this mean ovulation ??? Is it possible that I will get pregnant these days? If so, how can I determine this within two weeks? And even under such conditions as medical treatment, the possibility of pregnancy, is it possible to drink natural tea for weight loss, which has a laxative, choleretic effect, cleansing the gastrointestinal tract, respiratory organs, helps to reduce body weight, etc.? Because there on the box it was written to consult a doctor if I am being treated, I am pregnant.

Increased levels of male sex hormones can cause infertility. It may not be. it is determined post facto. A single determination of increased testosterone may not say anything. But during pregnancy (according to your last letter), an increased level of male hormones can lead to miscarriage, so the doctor prescribed you dexamethasone quite rightly, it blocks the production of male hormones. Only it is better to control the level of hormones not by testosterone in the blood, but by 17-KC in the urine, this is the sum of all male hormones released per day, the data are more reliable than a single random determination of one hormone in the blood.
It is better not to drink tea, because it is never fully known what manufacturers invest in dietary supplements for weight loss. All too often there are "natural" teas that include hormones and other remedies. Because you can't reduce body weight just like that, there must be a potent drug. Moreover, they themselves write that pregnant women at the discretion of the attending physician, i.e. disclaim responsibility. Better not to take risks, especially since there are problems with conception.
Ovulation occurs mid-cycle. An increase in temperature may indicate that ovulation has already occurred. If it increased from the 24th day, then it happened on the 23-24th day. And if you take progesterone from the middle of the cycle, then nothing means the increased temperature is given not by your internal progesterone, but by the one that is injecting. Ovulation and the possibility of conception on the eve and on the first day of the rise in temperature. In the natural cycle (without taking hormones), if the rise occurs, then the day before is determined according to the schedule by a slight decrease in temperature: for example, 14 day 36.6, 15 day 36.5, 16 day 36.3, 17 day 37. Ovulation at 16 day, you can get pregnant at 16-18 days

Malyarskaya M.M.

what should be the basal temperature throughout pregnancy. I have the 4th pregnancy (first childbirth), the period is 13-14 weeks. Basal temperature ranged from 36.88 to 37.02. In the last 3 days, it is like this - 36.88, 36.88, 36.76. Should the basal temperature be above 37 degrees during the entire pregnancy?

Until 12-14 weeks of pregnancy, the basal temperature should stay above 37 degrees Celsius. Its decrease indicates the threat of interruption. After 14 weeks, the temperature decreases, and its measurement has no diagnostic value.

Koroleva A.G.

I have PCOS. Therapeutic laparoscopy was performed. I am currently expecting ovulation. I measure basal temperature. For 14 days I have a rise to 37.1 - 37.2, this temperature remains until the onset of menstruation. I have a cycle of 31 days, sometimes more. On ultrasound, carried out on the 11th day of the cycle, I have many small follicles in the ovaries, the largest 10-11 mm; endometrial thickness 5.6 mm. Could these follicles collectively produce the same rise in temperature as during ovulation?

No, the rise in basal temperature is associated with ovulation. Perhaps you did not quite measure it correctly. The measurement is taken in the morning, before getting out of bed, for 5 minutes.

Please answer what happens to the basal temperature during ovulation? How many days should it stay elevated? And most importantly, how can you determine the anovulation cycle or the presence of ovulation at home, because I did not find specific data on the determination of such data on the site.

I will give an explanation of what the normal basal temperature should be during the ovulatory cycle using the example of a 28-day menstrual cycle. In the first phase of the cycle, i.e. from the first day of menstruation to ovulation, the temperature should fluctuate between 36.4 - 36.8. On the day of ovulation, the temperature drops sharply to 36.0 degrees and the next day rises above 37. degrees, but not above 37.3. At this level, it stays for 14 days (the duration of the second phase of the cycle is the same for different cycle times). On the day of ovulation, the temperature drops to 36.4 -36.8. If the temperature stays above 37.0 degrees for more than 16 days, pregnancy should be assumed. With anovulatory cycle, the basal temperature does not rise above 37.0 degrees Celsius.

When measuring the basal temperature, I got the following picture (cycle of 29 days): In the first 12 days of the cycle, there were significant temperature fluctuations from 36.6C to 37C, on the 13-17th day, the temperature was 36.4C-36.6C, on the 18th day - 36 , 9С, 19-28 days 37С-37.2С, 29th day 36.9 С.
I have the following questions:
1. Is it a deviation from the norm and what could be the reason for such temperature rises in the 1st phase of the cycle?
2. Am I ovulating? Is pregnancy possible?
3. Do I need to be tested for hormones, if so, what tests and for what hormones should I take?
Currently, I measure the temperature for the second month, now it is the 10th day of the cycle, the temperature again, then rises to 37C, then drops to 36.4C. I am 27 years old, the cycle is relatively regular 28-32 days, there are delays, but rarely and no more than a week.

It is a pity that you did not indicate the temperature values ​​for each day of the cycle, then the picture would be more complete. However, judging by your data, ovulation occurs approximately on the 17th day of the cycle. The second phase of the cycle is quite complete, i.e., guided by the temperature measurement indicators, the corpus luteum works well. Hence conception and pregnancy are possible. The high temperature in the first phase of the cycle is a deviation from the norm, there are several reasons for this. You need to do hormonal studies (from 8 to 10 days of the menstrual cycle: estradiol, testosterone, DHEA, prolactin; from 20 to 24: progesterone, T3, T4, TSH). It is advisable to perform an ultrasound examination, preferably with an intravaginal transducer, 2-3 days before the onset of menstruation, in order to exclude endometriosis, the presence of which may be one of the causes of high temperature in the first phase of the cycle.

1) Often in other answers there is the concept of "rectal temperature", i.e. measured in the rectum. My wife takes her vaginal temperature. Is this acceptable?
2) My blood group is B (III) +, and my wife's is A (II) +. What are the predictions for conception and pregnancy?
3) Now for the main question. The wife is 26 years old. For a year and a half, there is a problem with conception. My spermogram is good. In the beginning, the wife had very long cycles - 48-55 days. The rise in vaginal temperature during ovulation was only 0.2 - 0.3 degrees. Ultrasound revealed an increase in the ovaries 38x21 and 43x26. There were also found areas of increased echogenicity in the chest in the form of "clouds". X-ray with radiopaque substance of the uterus and fallopian tubes showed patency. Treatment was carried out with clostilbegid (5-9 days of the cycle, 0.5 tablets each) and microfollin (10, 12, 14 days, 0.5 tablets each). On the second cycle, the dose of Clostilbehyde was increased to 1 tablet, on the third cycle - up to 1.5 tablets from the 5th to the 9th day of the cycle. Microfollin was always taken in 0.5 tablets. The second cycle decreased to 33 days, the third cycle - 34 days. The picture of the rise in temperature during ovulation has become smooth, there is no sharp jump. This segment is shown in the table. Is this normal or not? Or is everyone here individually?
19 36,5
20 36,5
21 36,5
22 36,6
23 36,7
24 36,8
25 36,9
26 36,9
27 36,9
28 36,9
When drugs are canceled, can the cycle increase again? During the first cycle of treatment, PCT was performed. But it showed unexpressed results and it was decided to carry it out after reducing the cycle, which will probably be done at the beginning of the cycle. If PCT incompatibility is revealed, how can it be treated? How effective is it in modern conditions?

1. Basal (rectal temperature) should be measured in the rectum, in the morning, without getting out of bed, preferably at the same time and on the same side, within 3-5 minutes.
2. Given your group and Rh-affiliation, there should be no problems with pregnancy.
3. Judging by the data you described, your wife has an anovulatory cycle, i.e. the egg does not mature (although, given the incorrect measurement of the basal temperature, inaccuracies are possible). The results of the postcoital test indirectly confirm this. You do not mention the presence or absence of genital infections and the cleanliness of the vagina, and they can also affect the result of PCT. We recommend that you be further examined: repeated spermogram with immune tests (acrosomal reaction and MAP test), analysis for genital infections.

1) Ultrasound showed that my myometrium structure was changed due to diffuse changes. What is myometrium? What is the threat of a change in its structure?
2) What are echoes of polycystic ovary disease?
3) Basal temperature within 15 days after menstruation - 37.1. This is fine?

1) - Myometrium - the muscular wall of the uterus. Diffuse changes in the myometrium can be associated with inflammation and hormonal changes.
2) - Polycystic - changes in the ovaries associated with hormonal disorders
3) - This temperature is not the norm.

Is it a deviation from the norm: basal temperature during 1-10 days of the cycle 36.8-36.7

No, if in the 2nd phase the temperature rises above 37.1-37.2 within 12 days

Please tell me what a basal temperature of 38.8 can mean. The previous day was 36.5. Could it be the flu? Body temperature 37.0; 9th day of the cycle. Thanks.

Such a gap between basal temperature and body temperature is impossible. Apparently, you are mistaken.

Hello. If it's not difficult for you, please answer my questions. In June 1996, I was diagnosed with chlamydia. Together with my husband, we underwent a course of treatment. She took a second test in a specialized center in April 1997, that is, quite a lot of time has passed since the completion of treatment. PCR analysis was negative. Then, just in case, she donated blood for CMV (blood and smear). The analysis was also negative. Could you tell me whether it is worth taking these tests again, given that I want to get pregnant? And one more question for you: what can mean basal temperature in the second half of the cycle if it does not rise above 36.7-36.8 degrees? Is it possible to get pregnant with such a temperature? If this is a hormonal disorder, what tests should you do first?

Before pregnancy, it is better to do tests for herpes and cytomegalovirus (by blood). When measuring basal temperature, it is important to have a threshold - a temperature drop of 0.5-0.6 degrees in the middle of the cycle. If the initial temperature was low - 36.1-36.2 degrees, then the temperature in the second half of the cycle is unlikely to be higher than 36.8 degrees. An unfavorable situation is when the temperature is the same throughout the cycle - this is evidence of the absence of ovulation - the release of the egg from the ovary.

Mikushevich A.F.

There is quite a lot of information about the basal temperature everywhere, but I do not really understand: before menstruation, it drops, and if pregnancy occurs, it stays at the level of 37 and above. So what is next? In a sense, it keeps at this level until some time or something else?

The basal temperature above 37 degrees remains up to 16 - 20 weeks of pregnancy, sometimes longer, its drop up to 16 weeks of pregnancy is a sign of the threat of termination of pregnancy.

Mikushevich A.F.

I am 30 years old, dream of a child, monthly irregular (delays from 3 to 6 months, monthly from 5 to 14 days), during examination for infertility, ultrasound showed the presence of polycystic ovary, all hormones are normal, only prolactin is close to the maximum norm, microfollin preparations are prescribed forte and dufaston, in addition, definitionin was discharged. I have a question: can definin adversely affect the work of the brain (when it is taken, sometimes light dizziness occurs)? I measure my rectal temperature, but I can't find where it should be when pregnancy occurs?

Against the background of diphenin, there really are dizziness. This is one of the most common side effects of the drug. At the onset of pregnancy, the basal temperature remains at the level of 37.0 - 37.4 degrees until 16-18 weeks of pregnancy. A drop in temperature below 37 degrees indicates the threat of interruption.

Hello. I would be glad and very grateful to you for some clarifications and the actual answer to the questions. I have polycystic ovary disease. My husband and I want to have a child. My husband is 20 years older than me, that is, he is 43 years old. For half a year, according to the doctor's prescription, I drank Diana-35, then there was a break for 4 months, vitamins from the Lady series, after they stimulated ovulation, I drank Clomid, I drank it for 5 cycles, while doing an ultrasound scan, with a double dose I have ovulation, but I'm not getting pregnant. My husband took a spermogram, there were minor deviations, the percentage of leukocytes was increased, he underwent treatment, the spermogram result was normal, as the doctors said. Now, after taking Clomid, the doctor said she needed a break. Please tell me what should be the break, and what is the next stage after using Clomid? Is it true that women with polycystic disease need to practically drink hormone pills all the time to avoid cancer? What are the chances for women with polycystic disease to have children? The doctor says that there are chances, but they write everywhere the diagnosis: infertility. And in general, I do not quite understand the basal temperature, please tell me what the temperature should be during ovulation? If the temperature is mostly 37 degrees and more, what does this mean? I was completely confused and, to be honest, tired, we have been fighting for more than a year.

A bit of a messy description:

1. Polycystic ovaries are not an independent disease, but a syndrome that occurs in many gynecological problems, usually of a dyshormonal nature. Depending on these disorders, treatment is prescribed.

2. The risk of developing oncological processes with polycystic ovaries is not much higher than the risk among “ordinary” women.

3. The diagnosis “infertile marriage” is made if the spouses live without contraception for 1 year, and pregnancy does not occur. The examination for infertility is a staged one, one of the important and first stages is the measurement of basal temperature.

During a normal menstrual cycle, ovulation occurs - the release of an egg from the ovary. Immediately before ovulation, the basal temperature drops slightly (by 0.1-0.2 degrees C), immediately after it rises (by 0.6-0.7 degrees C), usually above 37 degrees, but in some absolutely normal women the temperature in the 2nd half of the cycle is 36.8-36.9 degrees C. "Pores" are formed. If the temperature is the same throughout the cycle, this means that ovulation is not occurring. It is stimulated by drugs such as Clomid (clostilbegit, clomiren). Since you had an answer to Clomid - ovulation, then most likely after a break, treatment with this drug will be continued until pregnancy (usually 3 cycles of treatment are carried out). If pregnancy does not occur, then you will most likely be offered a therapeutic laparoscopy with a reaction of the ovaries - a dense membrane is “removed” from them, and ovulation occurs independently, without medications. After such an operation, up to 70% of patients become pregnant.

Alas, fertility treatments are often very lengthy and take years. You will not advise anything but patience.

The body is a unique and sensitive system. Having an identical structure, each person has characteristics inherent only to him. An example of this is the female reproductive system.

The general concept of menstruation, their purpose and cycle is widely known. But few people think about the intricacies of their work. The active production of hormones and physiological processes, such as the release of an egg from the ovary, are accompanied by an increase in temperature in the organs involved. This process can be observed by taking a basal body temperature measurement.

Basal temperature - what is it?

Normal body temperature reflects the general condition of the body and is measured under the arm or through the mouth. Basal temperature has a more precise directionality. It must be measured rectally, since the fluctuations are not significant and have a small distribution area. According to its indicators, the activity of the genitals and the hormonal background of a woman is determined.

  • Negative attempts to get pregnant for a year or more;
  • Suspicion of infertility in one of the partners;
  • Suspected hormonal imbalance.

In addition, it makes sense to measure BT when planning the sex of a child, to increase the chance of getting pregnant, or for general development - to understand the processes taking place in the body and communicate with a specialist in the same language.

It makes no sense to measure basal temperature once. To be able to draw conclusions and monitor changes in the female body, long-term observation is necessary for several months. For clarity, they draw up a graph with which they are shown to the leading gynecologist. The doctor will be able to mark all the points of interest to you and explain everything in detail.

Only a qualified specialist can make the correct conclusions according to the schemes you provided. There are a lot of nuances by which the calculations are carried out and various deviations are determined.

To obtain reliable data, you should use a number of rules:

  1. Measurement should be taken in the morning without getting out of bed. Time fluctuations should not exceed 30 minutes.
  2. Enter the thermometer rectally for 5 - 10 minutes.
  3. The use of a mercury thermometer is preferred. In this case, it is prohibited to move. .
  4. Repeat the procedure daily for at least 3 cycles.
  5. All changes and related factors (colds, diarrhea, taking medications) should be recorded in the schedule.

We measure basal temperature to determine pregnancy

If a woman has been keeping a chart of changes in basal temperature for several months, it will not be difficult for her to determine early pregnancy from it.

In a normal cycle, the graph displays 2 phases: stability and a sharp rise followed by a decline.

  • Phase 1 - the first 2 weeks of the cycle. In this period, the basal temperature is relatively balanced (36.3 - 36.8 degrees) and does not have sharp drops;
  • Phase 2. Basal temperature jumps to 37.1 - 37.3 degrees for 3 - 4 days before ovulation and stays at maximum rates. Then, about a week before menstruation, it declines - from 37.0 degrees to a minimum of 36.3 - 36.5 degrees.

If the basal temperature has not dropped before menstruation, but stays at 37.0 degrees or higher, the likelihood of pregnancy is high. Information is not guaranteed and a test or visit to a doctor is required. Monitoring basal temperature is more suitable for determining safe and favorable days than for determining early pregnancy. There are many factors affecting temperature changes - disorders, mobility, changes in climatic conditions, changes in hormonal levels, and an increase in body temperature in general.

Early BT

Increased basal temperature is typical for the entire period of pregnancy. Most women stop keeping records when they find out about their situation. In the early stages, the basal temperature corresponds to the indicators of the first days of ovulation - 37.0 - 37.3 degrees. This is due to the production of the hormone progesterone, which is activated at the same time as ovulation. If conception did not occur, with the release of the egg, its level also decreases, lowering the basal temperature. In the case of pregnancy, the production of the hormone continues, thereby maintaining a high temperature.

How to make a basal temperature chart and why

Drawing up a schedule is necessary for a visual display of the activity of the internal genital organs of a woman. On it, you can make calculations and consult with your doctor about pregnancy and diseases. It is much easier to show ordered data than to explain it yourself, especially if you yourself are not sure what is going on.

Using the graph, you can determine the following points:

  • The time of maturation of the egg, which makes it possible to calculate the days of safe sex and vice versa - a favorable period for conception;
  • The maturation of the egg and the subsequent exit from the ovary. An increased basal temperature in the middle of the menstrual cycle means ovulation;
  • Find out the features of your endocrine system;
  • Calculate the onset of menstruation;
  • Assess the production of hormones by the ovaries;
  • The absence of an increase in temperature at the expected time of ovulation may indicate pregnancy. For couples seeking early conception, this information is very useful;
  • Diseases of the genital organs and inflammation also lead to an increase in basal temperature. It becomes possible to identify them in the early stages and take timely measures for treatment, without waiting for pain.

There are two ways to create a graph:

  • Computer applications

Specialized programs online or downloaded from the network provide the ability to maintain electronic records. This is comfortable for women who are well versed in computer technology who do not need outside help to fill out.

  • By yourself on paper

It is preferable to keep records by hand - it is faster and there is no need to print it out in advance for delivery to the doctor. In addition, not all women have sufficient computer knowledge.

To draw up a schedule, you need a checkered notebook and a pen. A standard coordinate system is drawn with the X and Y axes.

The X-axis marks the interval from the first to the last day of the menstrual cycle. Their number is individual. For different women, due to age, heredity and diseases, menstruation can go with a difference of 18 to 40 days. The standard is a cycle of 27 - 29 days for a healthy body.

Temperature readings are plotted along the Y-axis. The minimum indicator will be the temperature, a degree lower than your usual. In most cases, 35.6 degrees. The maximum indicator should be taken with a margin of 37.5 degrees. It must be borne in mind that there are people with high or low body temperature. This affects both conventional measurement methods - under the arm or through the mouth, and rectal. Therefore, the temperature prescribed in the reference book cannot be used. If up to this point you have not been interested in your standard body temperature, measure it for several days in a calm state in a convenient way (mouth or armpit). Once you've figured out the starting parameters, draw up a schedule.

Example of graph # 1 (click to enlarge)

Example of graph # 2 (click to enlarge)

Having a blank, you should wait for the start of a new monthly cycle and start filling: having measured the temperature in the morning, put the appropriate mark on the graph, and so on every day. By comparing the data of several cycles, a pattern will be found in which the temperature rise will occur in a certain period inherent in you personally. In the following tables, this moment is indicated by a vertical line and is called the ovulation line.

To determine the days of safe sex and days favorable for conception according to the schedule, you must use the following scheme.

The sperm cell is viable for 3 to 4 days, and the egg cell is viable for 1 to 2 days. Having determined the moment of the onset of ovulation, it is necessary to count back from it the days of the existence of an active sperm. Then add the days of its viability to the moment the egg is released. The resulting period of time is characterized by the highest probability of becoming pregnant. The rest of the days are presumably safe for sex without additional contraception. Naturally, no one can guarantee a 100% guarantee.

Basal body temperature (BBT) shows a woman when pregnancy can occur, ovulation. They measure it in a certain way: early in the morning, just waking up, at rest. Any thermometer is suitable for measurements, the time that is needed is 3-6 minutes. It's simple, and the results clarify many points.

What is basal temperature and how to measure it

BTT is body temperature measured in the rectum early in the morning without getting out of bed. This will allow you to find out if ovulation or egg maturation is currently taking place, on which days conception is possible. Basal temperature will indicate the imminent onset of menstruation, changes in the cycle, help in planning and detecting pregnancy or diagnosing some gynecological problems in the body.

How to correctly measure basal temperature at home:

  1. It is necessary to measure BBT from the first day of the arrival of menstruation.
  2. The thermometer should be placed in the rectum and not in the vagina. The rectal method provides accurate data.
  3. The device should be kept for 3 minutes.
  4. Measurements must be made every day for 2-3 months in one hour.
  5. It is better to do this in the morning, after waking up, right in bed. BTT may differ by 1 degree if you measured it in the evening.

Why do I need to measure basal temperature

When menstruation comes, the woman's hormonal background undergoes changes. The increase in the amount of progesterone is immediately displayed in numbers on the thermometer:

  • When the egg matures (with high estrogen levels), BTT is low.
  • After this phase, it rises again.
  • On average, an increase in thermometer readings reaches 0.4-0.8 degrees Celsius and indicates that ovulation has occurred.

The days before and during ovulation are good for conception. You need to know how to correctly measure basal temperature to determine ovulation. It is important to first clarify for yourself all the points in order to keep a schedule, entering indicators into it with the necessary regularity. Such records will help the doctor draw up a picture of what is happening, and over time, the woman herself will understand the numbers.

How to measure basal temperature to determine pregnancy

How to measure basal temperature to determine pregnancy? The measurement should be made during the period of maximum rest, which is sleep. Since this is impossible, then you need to get as close to the ideal as possible and measure it early in the morning, when you are extremely calm. It makes no sense to find out the data if you are taking hormones or antidepressants, or even while drinking alcohol.

How to measure basal temperature with a thermometer

There are three types of thermometers for these purposes: electronic, mercury and infrared. The latter are least of all suitable for such a measurement. You should be extremely careful with mercury, because during the measurement early in the morning, being sleepy, you can break it. It is unacceptable to change the measuring device, otherwise errors cannot be avoided. Do you want to use a regular thermometer or change it to a more advanced one? No problem, but choose your device for a long time.

How to measure basal temperature with a mercury thermometer

Accurate data can be achieved using a mercury thermometer, but even in this case, it is possible to measure incorrectly. The thermometer can be inserted incorrectly or removed too quickly. Given the danger of mercury, this type of thermometer is less commonly used. How to measure basal temperature with a regular thermometer:

  • the tip of the thermometer can be greased with ordinary oil (vegetable) or petroleum jelly;
  • then smoothly insert the device into the anus;
  • wait 5 minutes, lying with closed eyes in a state close to sleep.

How to measure basal temperature to determine ovulation with a digital thermometer

Electronic devices are easy to use, but have a bad reputation for not being able to measure accurately enough. To achieve the desired result, you should follow the instructions: so, using the oral method, close your mouth as tightly as possible so that the thermometer does not show a value less than it actually is. As a rule, the end of the measurement is indicated by a sound signal.

The greatest advantage of such devices (and the reason for the recommendations of doctors) is their safety:

  • If you drop it or it breaks in your hands while you are asleep, it will not harm you in any way.
  • The flexible tip makes the instruments comfortable to use, they are waterproof and measure faster.

How much temperature should be measured

Regardless of the method you choose, the time of this process will remain the same. How to measure basal temperature correctly? It's simple:

  1. The thermometer lasts 5-7 minutes. All this time you should remain motionless.
  2. The thermometer itself must be prepared in advance and placed near the bed so that in the morning it does not make any unnecessary movements that could affect the data.
  3. The time when the temperature will be measured must be observed with an accuracy of a quarter of an hour.

Basal temperature measurement rules for scheduling

How to measure basal temperature so as not to make a mistake when drawing up a schedule? The main thing is accuracy, it must be measured at the same time. If this rule is violated, then measurements should be started again as soon as the next menstrual cycle occurs. The results should be recorded in a table for the convenience of the subsequent selection of dependencies, while it is necessary to mark there everything that can change the indicators. You cannot change the type of thermometer if you want accurate data, but you must write them down immediately.

Video: how to measure basal temperature