There are individual differences in the time of fetal pelvic stage, generally the fetal head is in pelvic stage around 38 weeks of pregnancy for primigravida, and after delivery for transitional mothers, and in some primigravida, the fetus is even in pelvic stage after delivery. Therefore, it is acceptable that the fetal head is not in the pelvis at 38 weeks of pregnancy. If the fetal head is still not in the pelvis before delivery, the fetal head may be too large, the pelvis is narrow, or the fetal orientation is abnormal. If there is no head-pelvis disproportion, pregnant women can promote fetal pelvic through the following sports: 1, walking: 38 weeks pregnant fetus is not yet pelvic, pregnant women can walk in the morning and evening to relax the role of pelvic ligaments to help the fetus fall into the pelvis, in preparation for delivery. But should pay attention to the time should not be too long, to 30 minutes is appropriate; 2, small horse stroll: pregnant women can hold the table or chair back, feet stand smoothly, slowly bend the knee, so that the pelvis down, both legs knees naturally separated until fully flexed, then stir up with the feet, slowly stand up, until the legs and pelvis are erect, this action can exercise the muscles of the waist and back, which is conducive to smooth delivery; 3, paddle leg exercise: pregnant women can hold the back of the chair, fixed a leg chair back, fix a leg, the other leg to do rowing, and then replace the limb, repeat the above action; 4, waist exercise: pregnant women can hold the chair back, slow inhalation, while the arms force, tiptoe up, waist straight, so that the lower abdomen against the back of the chair. Then slowly exhale, relax the arms, feet restored. Waist exercise can increase the strength of the pregnant woman’s low back muscles and help the fetus into the pelvis. The pregnant woman to strengthen the exercise can promote the fetus into the pelvis, but also to exercise the pelvic floor muscles, increase the force of delivery. However, it is best to have a family member with you when exercising to avoid accidents.