Pregnancy is defined by the middle of the abdomen, with an upward bulge being the upper pregnancy and a downward bulge being the lower pregnancy. Upper pregnancy is the position of the fetus upward close to the stomach, which is manifested by the obvious bulging of the upper abdomen, while lower pregnancy is the position of the fetus relatively downward, which is manifested by the obvious protruding of the lower abdomen. The shape of the stomach after pregnancy is affected by factors such as height and build, pelvic size, tightness of the abdominal muscles, and the shape of the uterus, and may be manifested as an upper pregnancy or a lower pregnancy. After pregnancy, the middle of the abdomen is the boundary, upward bulge is the upper pregnancy, downward bulge is the lower pregnancy, to the late pregnancy after the fetus into the pelvis, pregnant women’s stomach will move downward, then the upper pregnancy will also become the lower pregnancy. Whether the pregnancy is upper or lower, there is no harm to the fetus, will not affect the normal growth and development of the fetus, if there is any discomfort need to consult a doctor in time.