What does it mean to start uterine pregnancy at several weeks of pregnancy? In the later stages of pregnancy, the fetus needs to push through the birth canal through its own physical strength to ultimately achieve a smooth birth. Pelvic insertion is the process by which the fetus begins to move gently from the uterine cavity to the entrance of the pelvis. Generally speaking, the fetus begins to enter the pelvis around 36 weeks of pregnancy. At this time, pregnant women often experience relatively low fetal pressure, and this process can have consequences later in labor. Entering the basin will cause pregnant women to have