How to count the days of pregnancy

Many women tend to forget the time of their pregnancy after they become pregnant. It is very important to know the pregnancy period. But I just wonder, how to calculate how many days of pregnancy? How can I calculate it more accurately? How to calculate the due date? These are all problems that expectant mothers feel. Next, just follow the editor and let him explain them to you one by one.

How to calculate the number of days of pregnancy

1. Calculate from the expected date of birth

The more accurate calculation of pregnancy time is to start from the first day of the expected date of delivery, rather than from the beginning of sexual intercourse. Many people start calculating the number of days to pregnancy from the day when sperm and egg combine. In fact, this method is incorrect. For example, if the first day of the expected delivery date is March 1st, then if the menstrual period lasts until April 10th, the pregnancy time is 40 days. I think everyone knows how to calculate the pregnancy time.

From a physiological point of view, it means the time from the first day of the previous menstruation to the present, which is the number of days of pregnancy. If you think about it carefully, it is relatively easy to calculate. The reason for this calculation is that it is possible to get pregnant before or after the due date, and some people even have a baby before the due date. Of course, most people don't actually become pregnant until about ten days after their due date.

2. Count from the time of pregnancy

How to calculate the pregnancy time? Another way is to calculate it this way: calculate it based on embryology, that is, subtract 15 days from the number of days obtained by the calculation method mentioned above. This is when pregnancy actually begins. Because this time is around the actual ovulation period, but this algorithm is only suitable for women with relatively regular menstruation. If your menstrual cycle is irregular, it is best to use the first method.

After pregnancy, you should check regularly. Generally, you only need to do a check once in the first three months, and then you can check once a month in the following months.

How to calculate the due date?

The estimated date of delivery is calculated based on the total pregnancy period of 280 days. The actual method is:

Due date month = 9 or -3 days from the first day of the expected due date.

Due date = the number of days from the first day of the expected due date7.

The time calculated in this way is the due date. For example, if the last menstrual period was on February 1st, then month 2+9=November, time 1+7=8th, so the due date should be November 8th.

If the due date is after April, the calculation method is to subtract 3. For example, if the expected date of menstruation is April 2, then April - 3 = January of the following year, 2 plus 7 = 9, so the due date is January 9 of the following year.

The above delivery date is calculated according to the Gregorian calendar. If the lunar calendar is used to calculate the expected delivery date, the monthly calculation is the same, except that 7 days are added instead of 15 days.

The above are some explanations and suggestions from the editor on how to calculate the number of days of pregnancy and the expected date of delivery. The number of days of pregnancy is very important for calculating the delivery date. If you are afraid of forgetting, it is best to write it down in a small notebook. In addition, during pregnancy, it is necessary to create a prenatal check-up card and have regular prenatal check-ups to identify the growth and development of the fetus in the uterine cavity. Expectant mothers should maintain a happy mood during pregnancy, be a beautiful pregnant mother, and let the baby come into this world healthy and happy.