The gestation period is mainly the number of weeks of pregnancy, which is usually about 40 weeks according to the first day of the last menstrual period until the end of the delivery, and the whole pregnancy period is 280 days in total. Delivery within 38-42 weeks of gestation is considered full term, but because the length of each woman’s menstrual cycle varies, there may be a 1-2 week gap between the projected due date and the actual due date. After pregnancy, you should take precautions, carry as little luggage as possible when you go out, don’t wear high heels, it is better to wear loose clothing, pay attention to the intake of nutrients, eat more fresh fruits and vegetables, which is beneficial to the growth or development of the fetus. Early pregnancy should not take the bumpy long-distance bus, try to choose the plane or take the train, too long time is not conducive to blood circulation.