How to calculate the number of days of pregnancy accurately

After pregnancy, many expectant mothers go to the doctor for some routine physical examinations. After the examination, the doctor will tell the expectant mothers how long they have been pregnant, but there is no exact number of days for pregnancy. So, on what day do expectant mothers successfully become pregnant? How to calculate the exact number of days of pregnancy? Let me tell you.

How to calculate the exact number of days of pregnancy

I believe that many pregnant mothers are eager to know the most accurate pregnancy time calculation data. If accurate and reasonable data cannot be obtained, it will definitely affect the daily affairs of pregnant mothers. Many pregnant mothers hope to know when they will give birth. After knowing this data, they can adjust their working hours in time and take enough rest and prepare for delivery in that time. It is said that the first three months and the last three months of pregnancy are in the risk period, so how can some women know how long their due date is and how the number of days should be calculated. So, how to calculate the exact number of days of pregnancy?

After many clinical trials, it was found that the normal delivery cycle is 280 days starting from the first day of the last menstrual period. The pregnancy period is 10 months, each year is 28 days, and pregnant women will give birth between the 38th and 42nd weeks of pregnancy. Because each pregnant woman's menstrual cycle is different, the estimated delivery date will have a deviation of one to half a month. This deviation is within the normal range.

The general calculation method is: add 9 or subtract 3 from the month of the last menstrual period, and the result is the number of months of the delivery period. Add 7 to the day level, and the result is the number of days of the delivery period. This calculation method can be used to calculate the most accurate number of days of pregnancy for pregnant women.