The last labor checkup is usually done at 37-40 weeks of pregnancy, mainly before the due date to clarify the size of the baby, the pelvic situation and the amniotic fluid situation, etc., so as to promote the smooth delivery of the baby. The whole pregnancy can be divided into early pregnancy, mid-pregnancy and late pregnancy, generally speaking, the number of labor checkups should be 1-2 months in early pregnancy, at least 1 month in mid-pregnancy, and at least 2 weeks in late pregnancy, and the number of prenatal checkups should be increased in the case of high-risk pregnant women. The contents of the prenatal checkups include measurement of the pregnant woman’s blood pressure, weight, uterine height, abdominal circumference, as well as fetal heartbeat monitoring. The last of these checkups should be done after 36 weeks of pregnancy to prepare for the delivery by clarifying the condition of the baby and the pregnant woman before delivery, so as to decide on the mode of delivery. Regular pre-pregnancy checkups can help to understand the changes of the fetus and amniotic fluid, which is important for the successful delivery of a healthy baby. In the late stage of pregnancy, pregnant women should pay attention to rest, keep in a happy mood, eat more fruits and vegetables, avoid sexual intercourse, and seek immediate medical attention if there is any discomfort.