In how many months does the fetus enter the pelvis?

Generally speaking, once the fetal head enters the mother's pelvis, it means that the fetus will be born soon. This is also the time period that every mother is most concerned about and the most careful. At this time, they begin to slowly prepare for the birth of the baby. However, it is not so accurate to determine when the fetus's head enters the pelvis. Let's take a look at the explanation below.

1. What does it mean when the fetal head enters the pelvis?

The professional term for the fetal head entering the pelvis is that the biparietal diameter of the fetal head reaches below the entrance of the mother's pelvic cavity, which makes the fetal head and bones proportional, so it is called "the fetal head entering the pelvis". When a pregnant woman shows uterine signs, vaginal delivery is possible and the first step of the delivery process has been completed.

Under normal circumstances, after the fetal head enters the pelvis, the fetal position will not change, which lays a good foundation for a successful delivery. However, pregnant women may experience frequent urination, constipation, cervical swelling, etc. Pregnant women do not need to worry, as these are normal. As long as the amniotic fluid has not broken, or there are no frequent contractions, spotting or other labor symptoms, there is no need to worry.

2. When does the fetal head enter the pelvis?

For women giving birth for the first time, the fetal head usually enters the pelvis around 36 weeks, which is the case for the vast majority of first-time mothers. When the fetal head enters the pelvis, the pregnant woman will feel her abdomen tightening or occasionally have abdominal pain. These are normal phenomena of impending delivery. The fetus in the abdomen is pushing its head downward to prepare for birth.

3. How long will it take for the baby to be born after the fetal head enters the pelvis?

When the fetal head enters the pelvis, it means that the pregnant woman's body is ready for childbirth, but it does not mean that delivery will occur immediately. After the fetal head enters the pelvis, the pregnant woman will clearly feel the compression of the cervix and may experience uterine contractions. In view of this, the pregnant woman should appropriately control the range and time of activity before the due date.