How to calculate the gestation period?

In life, every woman may have to go through the process of getting married and having children, especially when planning to have children after marriage, we must master some health knowledge in this regard. It is very important for women to know how to calculate the duration of pregnancy and the estimated date of delivery. The editor will introduce in detail some time calculations during pregnancy. For the sake of your child and your own health, hurry up and learn about it!

The gestation period of a pregnant woman is about 40 weeks. In medicine, the first day of the last menstrual period is often used as the starting time for calculating the expected date of delivery. The normal pregnancy period is about 265 days, which is calculated from the day the egg is fertilized. Ovulation occurs in the middle of the menstrual period, so 40 weeks of pregnancy is 2 weeks longer than the actual pregnancy time calculated from the day the egg is fertilized.

Calculation formula for expected date of delivery

The expected date of delivery is calculated based on the entire pregnancy period of 280 days. The specific method is: expected date of delivery month = month of the first day of the last menstrual period + 9 or -3, expected date of delivery days = days of 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.

Through the detailed introduction above and the calculation of the formula, everyone should now have a grasp of how to calculate the baby's due date and the duration of their own pregnancy during their pregnancy. Only by mastering the time can we more accurately judge the baby's growth stage and the time of delivery. Female friends must keep this health knowledge in mind.