How to calculate the gestational age by week with a description? Ways to determine the date of conception

2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21

Almost every woman wants to have a baby sooner or later. And this process requires some preparation from the very conception. It will also be useful to know how to calculate the gestational age by week. We will try to get acquainted with the description of this process below. Practice shows that it is easy for a woman to do this without problems with menstruation. True, sometimes you have to try in order not to make a mistake. An attentive woman will never miss the moment of conception. And this is the basic information that helps to find out if fertilization has taken place, and also how long the fetus has been developing.

About conception

Before you calculate the duration of pregnancy in women in weeks and not only, you need to figure out how conception occurs. This information will help every mom-to-be understand under what circumstances you should be on your guard.

Conception occurs by fertilization of a mature egg released from the folliclesperm. The most likely chance of pregnancy is during ovulation. It occurs approximately on the fourteenth day of the cycle. Or rather, in the middle of it.

However, even if a woman hasn't had unprotected sex when she ovulates, she can still get pregnant. Spermatozoa can retain their motility for about a week. This means that unprotected intercourse about a week before and 2-3 days after ovulation can lead to successful conception. But how can you calculate the gestational age? We will look at the description of this operation below. All the methods proposed below for obtaining the necessary data are effective and very reliable. But mistakes are still possible.

Different dates

It is also worth paying attention to the fact that the term of the "interesting situation" for doctors is different. At the moment, the girl can be informed of the obstetric and embryonic gestational age. Only it is not entirely clear what will have to be de alt with.

Obstetric gestational age is counted from the beginning of the last critical days, and embryonic - directly from conception. The second one is two weeks shorter than the first one. This is normal.

Ways to solve the problem

How to calculate the gestational age? You can calculate it by weeks if you know exactly when the conception occurred. Next, from the current date, you just need to subtract the day of conception. The resulting period is the period of development of pregnancy. That is why we will focus directly on determining the first day of conception of the baby.

Currently achievethe desired result for a woman can be:

• using a special test;
• calendar method;
• using the basal temperature chart;
• using special online calculators;
• by going to a gynecologist;
• by visiting the ultrasound room.

It's actually easier than it looks. Especially if you prepare in advance and carefully monitor the body. Next, consider all the existing options for the development of events.

Calendar method

How to find out the gestational age by week? You can calculate the date of conception and the current time of fetal development using a calendar method. It is perfect for women with regular cycles.

To use it, it is recommended to do the following:

1. Determine the day of ovulation. This is about the middle of the cycle. Ideally, use ultrasound to determine ovulation and special tests for home use.
2. Remember when were the last critical days and unprotected intercourse.
3. Subtract the date of conception from the current date, as well as the day when the last menstruation began.

In the course of the described actions, the woman will immediately calculate both the embryonic and obstetric gestational age, respectively. The main thing to remember is that sexual intercourse more than a week before ovulation, as a rule, does not lead to an "interesting position".

Pregnancy tests

How to accurately calculate the gestational age by week? itfar from the most difficult task. Especially if the woman has a regular menstrual cycle.

To achieve the desired result, you can purchase an electronic pregnancy test. Such a device often allows not only to judge the success of conception, but also shows how long the girl has become pregnant. Or rather, the obstetric period of the "interesting situation".

In order to obtain the necessary data using the selected method, you will need to do the following:

1. Purchase an electronic pregnancy test showing the gestational age. For example, Clearblue.
2. Wait for late period. Until then, the results will be unreliable.
3. Substitute the test under the stream of morning urine. You can also collect the biomaterial in a sterile container, and then dip one end of the test into it.
4. Hold the receiver in the urine for 5 seconds.
5. Place the device on a flat, dry surface. Sometimes this is not necessary.

After the actions taken, the woman will see if she is pregnant. If yes, the electronic test will show not only successful conception, but also the term of the "interesting position" in weeks.

Important: you can buy a similar test in pharmacies and even on the Internet.

Temperature graph

Calculating what the current gestational age by week is not as difficult as it might seem at first. With this task, as already mentioned, every woman will cope. The main thing is to figure out how to act with certaincircumstances.

To determine the date of conception, you can build a so-called basal temperature chart. True, this technique helps to obtain reliable information only for those ladies who maintain a BT schedule for several menstrual cycles.

Instructions for achieving the corresponding goal looks like this:

1. Measure your basal temperatures daily and record them in a special calendar. It is also desirable to put marker points on the chart.
2. Build a BT chart.
3. Look at the received data. During ovulation, BBT increases. It can reach 37.5 degrees Celsius. If conception did not take place, everything slowly returns to normal. Otherwise, the temperature will remain elevated.

As soon as the date of conception is known, you can easily calculate the gestational age by weeks after IVF and more. Practice shows that all this is extremely simple and understandable. Even a teenager can achieve the desired result. The main thing is to be attentive to your body.

If a woman did not initially maintain a BT schedule or has irregular critical days, it is better to refuse this approach. It will give false results.

Online calculators

You can automatically calculate the gestational age of twins by weeks (or one baby). Or rather, through special web services. They are called calculators. In our case - pregnancy calculators. Typically, such services are located on various women's information websites. They work around the clock and are absolutely free.

Would you like to calculate the gestational age by week? We have already familiarized ourselves with the description of several ways of calculating the relevant information. To use the online calculator for this venture, you will need:

1. Find a pregnancy calculator. For example, on the websites "Baby.ru" or "Babyblog".
2. Specify the duration of the menstrual cycle.
3. Put the date of the last menstruation in the specially designated windows of the electronic form. Its beginning is implied.
4. Press the button responsible for starting the necessary calculations.

Fast, simple and very convenient! Now it remains to wait a bit - the system will process the form that appears on the screen. After waiting a couple of seconds, the user will see on the screen information about the date of conception.

What's next? Some calculators immediately show how many and for which dates pregnancy is. If this information is not available, the woman should simply determine the difference between the current date and the time of successful fertilization of the egg. Elementary mathematical operations and nothing more!

On the DA

How to calculate the gestational age by week? Calculate the date of conception, and then determine the difference between the current date and the time of successful fertilization of the egg. This, as practice shows, is not so difficult. It is enough to know mathematics at the school level.

A non-standard way to obtain information of interest to a woman is to determinedate of conception according to the DA. At the same time, the "interesting situation" persists for nine months. Let's take a situation without pathologies. It is they who need to be "rewound" from the expected date of birth.

What's next? If you want to determine what is the gestational age at the moment, a woman should simply count how many weeks and days have passed since the fertilization of the egg until today. Everything, as you can see, is extremely simple and clear. True, such a solution is not in great demand.

Gynecological calendar

How to accurately calculate the gestational age by week? If there is a suspicion that the girl has an "interesting position", the woman will have to hurry up and see a doctor. It is worth making an appointment with a gynecologist.

This specialist, using his gynecological calendar, will calculate the time of fetal development and report the EDD. Very comfortably! All you need to tell your gynecologist is the first day of your last menstrual cycle before a potential conception.

The doctor will set the named date on his calendar, and he will show exactly when the conception occurred, as well as the period of fetal development at the time the girl turned to the gynecologist. Also, as we have said. with the help of this calendar, you will be able to understand exactly when to expect replenishment in the family.

Important: before a visit to the gynecologist, it is also recommended to do a blood test for "human hormone". It rapidly increases during pregnancy. It is possible that the delay in menstruation is caused bysome hormonal failures, and not the successful conception of a baby.

Ultrasound help

To calculate the duration of pregnancy in women in weeks, you often have to seek help from specialist doctors. Not a single independent technique presented to attention earlier gives reliable results. All of them can be wrong, since the female body, under the influence of external factors, diseases and hormones, can shift the menstrual cycle and ovulation. This gives a lot of trouble when determining the time of conception of the baby.

In order not to have to think about how you can calculate the gestational age by weeks (we have already managed to get acquainted with the description of some methods for obtaining the relevant information), you just need to do a special test at home (you can also contact the clinic for it), and then see a doctor in the ultrasound room.

Only with the help of a study of the pelvic organs through ultrasound will it be possible to understand whether there is a pregnancy. And if so, what is its period at the time the patient applied for the relevant service.

As a rule, a too early visit to the ultrasound room is ineffective - the fetus can be confused with a tumor or an inflammatory process. At about 6 weeks of the "interesting position", the unborn baby has a heartbeat. And already at this time, you can understand for sure whether the pregnancy really takes place, and also what is its term.

Need to calculate the gestational age? How many weeks does the fetus develop? Then each girl should choose a method of diagnosing the "interesting situation". With this information,as we have already said, obtaining data on the current "stage of development" of the fetus will not be difficult. It is not difficult to calculate the gestational age by ultrasound by week.

Important: it is imperative to clarify with a specialist in an ultrasound room exactly what period of the "interesting situation" he is talking about. Then it will not be difficult to understand when to go on maternity leave at work. And find out before the visit to the gynecologist the day when the woman will have to give birth "according to the plan".

Negele formula and its help

But that's not all! In order not to get confused, a woman can use a special weekly pregnancy calendar. In this case, information on exactly how many children a girl will give birth to will help to calculate the period of maternity leave at work. Usually they go on maternity leave at the 30th week of the "interesting situation", and after it they are on leave to look after the newborn.

In any case, you need to understand how to correctly calculate the gestational age at the current moment. For example, by means of the Negele formula. It helps to achieve the desired result before a visit to the gynecologist. To cope with the task in this way, you need:

1. Find out when the first day of the last critical days was.
2. Subtract 90 days from the received date.
3. Add a week. There will be a moment when a woman should give birth. Of course, with a normally developing pregnancy.
4. Deduct 280 days from the DA. In this case, it will be possible to find out when the conception occurred.
5. Calculate the difference in weeks and days betweenthe current date and the day the baby was conceived.

Done! This method is usually used by gynecologists to calculate the PDR. The last 2 steps of the proposed guide help women at home to find out what the time period for the development of an "interesting situation" is now.

Instead of a conclusion

We found out how to calculate the gestational age by weeks. It was possible to get acquainted with the description of possible methods for obtaining information in as much detail as possible. Practice shows that everything is extremely simple. A little attention to your own body - and it's done!

Which method is better to use? Electronic tests and ultrasound examination at the doctor's office. It is also recommended to consult a gynecologist if you suspect pregnancy. But the BT schedule and the calendar method for calculating the term of the "interesting situation" can fail.