How many days does the entire pregnancy last?

Pregnancy is a difficult thing. Pregnancy is also an extremely happy thing. When pregnant women see their babies growing up day by day, they will feel the superiority of the mother-child bond. Everyone knows that it takes ten months of pregnancy to give birth to a child. But the pregnancy process is actually not longer than ten months, so how many days does the entire pregnancy last?

1. What is the pregnancy cycle time?

Pregnancy time refers to the period from pregnancy to delivery. Pregnancy refers to the presence of one or more fetuses or embryos in the body of a female mammal. Human pregnancy is the best scientifically studied of all mammals.

Because every pregnant woman cannot accurately tell the time of pregnancy, medicine requires that the expected date of delivery be calculated from the first day of pregnancy. The entire pregnancy period is 280 days, or 10 months of pregnancy.

Pregnant women give birth between 38 and 42 weeks of pregnancy, which is considered full-term. Because each woman's menstrual cycle is of different length, it is normal for the estimated due date to differ from the actual due date by 1 to 2 weeks.

2. How long does pregnancy last?

The calculation method is to start from the first day of the expected delivery date of pregnancy, subtract 3 or add 9 to the month, and add 7 to the day. For example, if the first day of the pregnancy is April 21, 2000 in the Gregorian calendar, the due date should be January 28, 2001. If you only remember the first day of the lunar calendar due date, you should calculate it into the solar calendar and then calculate the due date. It must be emphasized that the actual delivery time of a pregnant woman may be 1 to 2 weeks away from the estimated delivery date. If you can't remember the due date of your pregnancy, you can ask your doctor to estimate it based on the time when the early pregnancy reaction starts to appear, the time when the baby's fetal movement starts, the height of the uterine fundus measured by hand, and the length of the uterus measured with a ruler.

3. How to calculate pregnancy time

Because every pregnant woman cannot accurately tell the time of pregnancy, medicine requires that the expected date of delivery be calculated from the first day of pregnancy. The entire pregnancy period is 280 days, or 10 months of pregnancy. Pregnant women give birth between 38 and 42 weeks of pregnancy, all of which are full-term. Because each woman's menstrual cycle is of different length, it is normal for the estimated due date to differ from the actual due date by 1-2 weeks. The key calculation methods are as follows:

1. Calculate based on the expected date of delivery

Add 9 or subtract 3 from the month of the expected date of delivery to get the month of delivery; add 7 to the day of delivery to get the day of delivery. For example: Ms. Chen's due date is March 13, 2008, and her due date is approximately December 20, 2008. Ms. Chen's due date is May 28, 2008, and her due date is approximately March 5, 2009. You can also calculate backwards from the first day of the due date to the 280th day, which is the due date.

2. Calculate based on the baby's fetal movement date

If you can't remember your due date, you can calculate it based on the baby's fetal movement time. Generally, fetal movement begins between 18 and 20 weeks of pregnancy. The calculation method is: for primiparas, it is the day the baby moves plus 20 weeks; for multiparas, it is the day the baby moves plus 22 weeks.

3. Calculate based on the basic body temperature curve

The last day of the ultra-low temperature segment of the basal body temperature curve is taken as the ovulation period, and 264-268 days are counted backward from the ovulation period, or 38 weeks are added.

4. Calculation based on B-ultrasound examination

When the doctor does B-ultrasound, he can estimate the gestational age and calculate the date of delivery by measuring the biparietal diameter of the fetal head, the brachiocephalic diameter and the length of the femoral head (this method is mostly used by doctors for B-ultrasound examination and diagnosis).

5. Calculate from the time when morning sickness begins

Morning sickness usually occurs on the 6th week of pregnancy, which is 42 days after the expected date of delivery, and then counting backwards to 280 days is the due date.

According to the detailed introduction in the article, we can understand that a woman’s gestational age actually refers to the number of days from pregnancy to delivery. In fact, a woman's pregnancy is not limited to ten months. It is estimated that a woman's pregnancy time is about 280 days. In other words, you can give birth to a baby after 280 days of pregnancy. If you are a woman, you'd better understand this.