For almost every woman, a child is a desired and expected miracle. Therefore, many ladies, as soon as they find out that they are in an interesting position, want to know when they will be able to see their baby. And if it's too early for methods such as ultrasound or gynecologist examination, you can try to calculate the date of birth by monthly. How it can be done independently is exactly what I want to talk about.
So, first of all, you need to decide why a woman needs to know this information. It is worth saying that this figure will be far from accurate, so it can be indicated simply to determine the approximate date of the baby's birth. Further, by other, more precise methods, this date will be clarified. Basically, women who can't wait to find out when their baby will be born figure out on their own how to calculate the date of birth by monthly.
What is good about determining the date of birth by monthly? This method is very easy to use and is suitable for all women. After all, for the most part, ladies very rarely monitor ovulation (according to these indicators, it is also possible to calculate the preliminary date of birth and find out the time of birth of the baby) and almost never know when exactly fertilization could occur.
How long does a medically normal pregnancy last? If we count in the usual mode for everyone, this is 9 months. However, gynecologists usually consider the development of the baby not by months, but by weeks. I.e., in their calculation, a normal pregnancy lasts 40 weeks. You can also count by lunar months. In this case, the woman will give birth to her baby after 10 lunar months. But there are certain nuances in this statement. So, very rarely pregnancy lasts exactly the allotted period of time. A normal, i.e. full-term and not yet transferred, baby is considered to be born in the period from the 38th to the 42nd week of pregnancy. Therefore, it is certainly not worth dwelling on the figure obtained by any methods, it is approximate and just indicative for parents.
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In order to find out the date of delivery by monthly, you need to know only one important date – the beginning of the last menstruation. Next, you just need to make simple calculations according to the formula of Franz Negele (the German obstetrician who gave women this method of calculations). To do this, you only need to take away three full months from the first day of the last menstruation and then add one week, i.e. seven days.
In order to better understand how the calculation of the date of birth by monthly is carried out correctly, you just need to see how it is done, using an example. So, let's say that a woman's last menstruation began on April 3. Next, the Franz Negel formula comes into operation, according to which we take three full months from this number. It turns out January 3. Next, you need to add one week to the received date. As a result, we get January 10. This will be the PDR sought by the woman, i.e. the expected date of birth.
However, it is not so easy to approach these calculations. After all, ideally, this formula is designed for those women whose cycle is clearly 28 days. However, this is not always the case. On average, a cycle is considered normal, the duration of which can be from 26 to 35 days. And the pregnancy itself falls at the time of ovulation, which occurs in the middle of the cycle, approximately on the 12th-14th day (at the rate of 28 standard days). If the woman's figures are different, then the results need to be adjusted a little.
How to correctly calculate the date of birth by monthly, if a woman's cycle does not last 28 days? There are nuances here. If it is shorter, then the date obtained by standard calculations will not be accurate. It is necessary to take away from it as many days as the cycle differs from the ideal one. If the cycle is longer, then you will also need to calculate the indicators using the standard method, however, again, make adjustments - add the difference between the woman's cycle and its ideal indicators of 28 days to the date received. Generally speaking, the longer a woman's cycle, the longer she will carry her baby.
Now I want to calculate the date of birth by monthly by example, considering the situation when a woman's cycle differs from the standard one. Let the preliminary calculations remain the same as above, then we will just proceed from the PDR on January 10.
Again, it is worth recalling that you can independently calculate the date of birth by monthly, but do not get too hung up on this figure. After all, it is not final, and the baby may want to see the light a little earlier or later than this date. As for statistics, only about 20% of women give birth on the day they received thanks to calculations (both their own and doctors). But the rest will expect a surprise, because the baby may appear, starting from the 38th and ending with the 42nd week (and this is absolutely normal). This is the time when the baby will not be considered premature or postponed. Various stressful situations, pathologies in fetal development, hereditary factor and many other reasons can provoke earlier childbirth.
We have already figured out how the estimated date of monthly delivery can be found. However, it is worth saying that this is far from the only method of determining this number. So, there are several more.
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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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