Whether the fetus is in labor at 35 weeks of pregnancy varies from person to person. Under normal circumstances, if it is the first birth, that is, primigravida, generally in 1-2 weeks before the expected date of delivery, that is, about 38-39 weeks of pregnancy into the pelvis, if it is a woman in labor, generally after labor, that is, after the regular contractions into the pelvis. Special fetal position, fetal head is too large, etc. will affect the pelvic, so need to be specific circumstances, specific analysis: 1, normal situation: 35 weeks of pregnancy, the vast majority of cases of the fetus will begin to pelvic, but the process of pelvic is often not completely complete, because for a child, the fetus is generally in 35-36 weeks to begin to pelvic, in the expected date of delivery before and after the completion of the process of pelvic completely, the general primiparous women in pelvic 2-3 weeks after the possibility of Delivery; 2. Abnormal situation: there are some situations that may affect the fetal pelvis, such as asymmetry between the fetal head and the pelvis, the fetus is too large, the umbilical cord around the neck, the head of the fetus can not be descended, placenta praevia and so on, the fetus may be late in the pelvic position. If the position of the fetus is not cephalic, but transverse or breech, the difficulty or imbalance in pelvic entry due to the mismatch between the shape of the fetal buttocks or shoulders and the pelvis may lead to premature rupture of membranes, and the umbilical cord may also be susceptible to prolapse, and a cesarean section may be required to end the pregnancy. In most cases, the fetus has begun to gradually enter the pelvis at 35 weeks, but it is normal for a small number of fetuses not to enter the pelvis. Regular checkups are needed in late pregnancy, and attention should be paid to the vaginal examination and abdominal examination to determine how well the fetus has entered the pelvis, in order to assess the mode of delivery of the pregnant woman.