Why did a pregnant woman give birth in the ninth month?

Because everyone's physique is different, and 28 days is a pregnancy month, even if it is full-term in nine months, it is possible to fall and give birth early with fetal gas, which is normal.

Some have fetal gas, some have cesarean sections, and some are born prematurely because they are not careful in their daily lives.

Pregnancy is normally about 40 weeks of birth, every four weeks for a gestational month, that is, 28 days for a gestational month, so it is 10 gestational months of delivery, according to the usual calendar, that is, more than 9 months. The date of delivery varies according to the menstrual cycle of each pregnant woman, but it generally does not exceed 2 weeks.

Pregnancy is calculated from the date of the start of the last menstrual period, 7 days is 1 week, 4 weeks is 1 month, and the due date is 280 days and 10 months. Pregnancy is full 37 weeks is full-term, 9 months of pregnancy is only 36 weeks, medically called premature infants, because 36 weeks is close to term, most of the fetal weight and cardiopulmonary function development is normal, so the impact is not great, a small number of fetuses need to be observed because of insufficient weight and cardiopulmonary function**.

Nine months is 38 weeks, which is normal, as long as it is more than 37 weeks, it is full-term, and it is generally okay.

It is said that it is conceived in October, but in fact, most of them are born in more than nine months, and they are born in two heads, and some are born in ten months, but not much, and it is normal to be born in a few months.

It may mean that some placentas mature prematurely, or that there are premature babies who may have problems with her constitution.

Power tire gas, which is premature!!

The fetus and pelvis may appear to be lowered in appearance and feel. When the fetus moves into a lower position, this relieves the pressure on the woman's diaphragm, making it easier for her to breathe. But it also puts more pressure on her pelvis and bladder, causing her to go to the toilet frequently.

In addition, a woman's abdomen may appear lower and more prominent, and she may wobbly when walking. A woman's uterus contracts throughout pregnancy. Towards the end of pregnancy, uterine contractions begin to put the fetus in a lower position in the birth canal, and eventually the uterine contractions will help to push the fetus into the world.

True labor involves regular, rhythmic, and violent contractions that are spaced less than five minutes apart and last more than an hour or two. Contractions usually start in a woman's back and then move to the front.

First of all, there will be a particularly strong abdominal pain in the abdomen, and you will feel a particularly strong feeling of falling, and at the same time, there will be redness, and it will also be accompanied by a particularly strong labor pain.

1. It takes 280 days to go from the fertilized egg to the delivery of the brigade.

2. In ancient China, the lunar calendar was used, which was 29 or 30 days per month, and 10 months were generally less than 295 days.

3. In the past, pregnancy was calculated from the last menstrual period, and it was about 14 days from the last menstruation to ovulation and insemination, so it was generally 294 days from the last menstrual period to delivery.

In this way, people are used to thinking that they are pregnant in October.

The so-called October pregnancy, not according to the actual month of calculation, the elimination of Huai is according to 28 days for a Sun Qiao month, 40 weeks of calculation, if according to the month of 30 days, more than 9 months is also about 280 days.

In fact, the entire pregnancy lasted for 280 days, and when converted into months, there are actually only one month, and if you add the wrong date of pregnancy and the day of early delivery, it will basically be born in 9 months

If yes. Lunar.

Tell you that it should be in.

Next year. The fifth month of the lunar calendar.

Calculated based on the last menstrual period.

Due. Last menstrual period. Date. Target.

Month. Add 9 or subtract 3 to the number of months of the expected date of delivery; The number of days plus 7 is the expected date of delivery. For example:

Ms. Zhang's last menstrual period was.

March 2007.

On the 13th, its expected date of delivery was approximately December 20, 2007.

Ms. Lee's last menstrual period was.

May 2007.

On the 28th, the expected date of delivery was about: March 4, 2008.

Pregnant women can also be extrapolated from the first day of their last menstrual period to the 280th day of their due date.

The above months and days are calculated according to the solar calendar, if you are not given the solar calendar, please change the mu to calculate the solar calendar, the so-called expected delivery date.

Just kids. Born.

Probably. Date. The physical condition of the pregnant woman and other external signs will affect the early and late date of the child's birth, if.

Newborn. Births that are 2 weeks earlier or later than the expected date of delivery are still considered normal. Parturition.