36 weeks fetal pelvic may be 2-4 weeks will be delivered, this is not absolute, the specific delivery time varies from person to person. Fetal head into the pelvis is also the fetal head biparietal diameter reaches the entrance plane of the maternal pelvis, the lowest point of the fetal head cranium is close to or reaches the mid-pelvic plane of the maternal pelvis, the fetal head into the pelvis can not be accurately determine how long will be born, how long can be born is different from person to person. At 36 weeks of pregnancy, the fetus enters the pelvis, may be in labor in 2-4 weeks, but is not absolute, some women experience preterm labor, the fetus enters the pelvis occurs before the labor pains, 24-48 hours will be in labor. The fetus enters the pelvis to prepare for the subsequent labor, and then we should observe whether there are signs and symptoms of labor, such as redness and regular contractions, and if there are signs and symptoms of labor, we should be prepared for labor. In the late stages of pregnancy, do a good job of pregnancy checkups, observe the changes in the body, abnormal bleeding, severe abdominal pain and consult a doctor.