Ovulation period and estimated delivery date

The expected date of delivery is the average estimated date of birth of the fetus. According to medical records, a pregnant woman's birth date is usually around 40 weeks of pregnancy, but the actual birth date of the fetus may be slightly different.

How to calculate due date?

The calculation method is as follows:

1. Date of last menstrual period

2. Number of days since last menstrual period

3. Add 9 or subtract 3 to the month of the last menstrual period, then add 7 to the number of days to get the predicted date of birth.

For example, if the date of the last menstrual period is January 1, 2022, then the number of days since the last menstrual period is 38 days, and the month of the last menstrual date is January, then adding 9 to the month is October, and adding 7 to the number of days is 33 days , then the predicted date of birth is October 33, 2022.

Please note that the predicted date of birth is for reference only and the actual date of birth may be slightly later or earlier than the predicted date.

In addition to calculating the due date, there are other methods that can help us predict the birth date of the fetus. For example, ultrasound can be used to determine whether the fetus is mature, or information such as maternal weight and uterine height can be used to predict the date of birth.

During pregnancy, we need to closely monitor the physical condition of the pregnant woman to ensure the health of the mother and fetus. At the same time, we need to follow the doctor's advice and carry out pregnancy examinations and activities according to the pregnancy plan.