The head of the fetus of the second pregnancy will enter the pelvis later relative to the primigravida, or even after labor. Most of the primigravida fetal head can generally be pelvic at about 36 weeks of pregnancy, but there are a few after delivery, and the menstruating mothers relative to the primigravida pelvic later, or even before the fetus is delivered, so it is not that the second child before delivery fetal head are not pelvic. After the head of the fetus into the pelvis most pregnant women can consciously decline in the bottom of the uterus, accompanied by a feeling of falling abdomen and lower body swelling and pain and other feelings, consciously breathing easier than before, appetite becomes better, false contractions are more frequent than before, after the 36th week of pregnancy, should be weekly checkups, if there is any abnormality in time to deal with. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, pay attention to more rest, at the same time should be relaxed, to avoid nervousness, anxiety, there is any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.