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, the first time, generally 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 the delivery, that is, after the regular contractions into the pelvis. Special fetal position, fetal head is too large, etc. will affect the pelvic, so need specific circumstances, specific analysis: 1, normal situation: 35 weeks of pregnancy, the fetus in most cases will begin to pelvic, but the process of pelvic often is not completely completed, because for a child, the fetus generally began to pelvic in 35-36 weeks, before and after the due date to completely complete the process of pelvic, generally 2-3 weeks after the first maternal pelvic may Delivery; 2. abnormal conditions: there are some conditions that may affect the fetal pelvis, such as the fetal head is not symmetrical with the pelvis, the fetus is too big, the umbilical cord is around the neck, the fetal head cannot descend, the placenta praevia, etc., and the fetal pelvis may be late. If the fetal position is not cephalic, but transverse or breech, because the fetal buttocks or shoulders do not match the shape of the pelvis and cause difficulty or imbalance in pelvic entry, it may easily lead to premature rupture of the fetal membranes and cord prolapse, which may require cesarean section to end the pregnancy. In most cases, the fetus has started to enter the pelvis gradually 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 vaginal examinations and abdominal examinations are needed to determine the pelvic position of the fetus in order to assess the mode of delivery.