How to count the days of pregnancy

After a pregnant woman becomes pregnant, she wants to calculate the number of days of pregnancy. However, because she does not understand some physiological knowledge in this area, there will often be some errors in the calculation. In order to calculate more accurately, she should know the last menstruation and start counting from the last menstruation. The time calculated in this way is more accurate. Calculating time in this way is also very important for the conditioning of pregnant women. Let's take a look at this aspect.

How to calculate the number of days of pregnancy

1. Count from the last menstrual period

The more accurate calculation of pregnancy days is from the first day of the last menstrual period, not from the day of intercourse. Many people count the days to pregnancy from the day the sperm and egg combine, but this calculation is actually wrong. For example, if the first day of the last menstrual period is March 1st, then if it lasts until April 10th, the pregnancy days will be 40 days. I think everyone knows how to calculate the number of days of pregnancy.

From a physiological point of view, it refers to the time from the first day of the last 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 conception is possible before or after the last menstrual period, and some people even have a baby before the last menstrual period. Of course, for most people, conception begins about half a month after the last menstrual period.

2. Count from the time of conception

How to calculate the number of days of pregnancy? Another method is to calculate it from the perspective of embryology, that is, subtract fifteen days from the number of days obtained by the calculation method mentioned above. This is the actual time of conception. Because this time is the actual ovulation period, but this algorithm is only limited to women with regular menstruation. If your menstrual cycle is irregular, it is best to use the first method.

After pregnancy, you should have regular check-ups. Generally, one check-up in the first three months is enough, and you can have a check-up once a month in the following months.

How to calculate the due date?

The estimated date of delivery is calculated based on the entire gestation period of 280 days. The specific method is:

Estimated date of delivery = the month of the first day of the last menstrual period + 9 or -3.

Estimated date of delivery = the number of days from the first day of the last menstrual period + 7.

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

If the last menstrual period was after April, subtract 3 from the formula. If the last menstrual period is on April 2, then April - 3 = January of the following year, 2 plus 7 = the 9th, so January 9th of the following year is the expected date of delivery.

The above is the expected date of delivery calculated according to the Gregorian calendar. If the expected date of delivery is calculated using the lunar calendar, the month calculation is the same, except that the date plus 7 days is changed to 15 days.

The above are some answers and suggestions from the editor on how to calculate the number of days of pregnancy and the expected date of delivery. The duration of pregnancy is very important for calculating the expected date of delivery. 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 determine the development of the fetus in the uterus. Pregnant mothers should maintain a happy mood during pregnancy, be a beautiful mother, and let the baby come into this world healthy.