Correct sleeping position during pregnancy, early and mid-pregnancy to comfortable, late pregnancy to avoid lying down position, to the left side position is preferred. Early and mid-pregnancy when the enlarged uterus will not compress the inferior vena cava and cause a drop in blood pressure, pregnant women can choose their own comfortable position to sleep, such as lying down, lying on the side of the can, but can not squeeze the abdomen. In late pregnancy, when lying down, the enlarged uterus will compress the inferior vena cava, so that the return blood volume and cardiac output will decrease and low blood pressure will occur, so it is recommended to lie down on the side, especially on the left side of the best position. During pregnancy, it is necessary to follow the doctor’s advice to take obstetrical examination on time, and increase diet and nutrition in a reasonable and balanced way to meet the growth and development of the fetus and the physiological needs of the mother. Early pregnancy should also pay attention to appropriate rest, avoid strenuous exercise and exertion, prohibit coitus. After the end of pregnancy, you should also strictly count the fetal movements under the guidance of the doctor to self-evaluate the intrauterine condition of the fetus.