4 weeks of pregnancy is 1 gestational month, so 39 weeks of pregnancy is 9 months and 3 weeks of pregnancy. Pregnancy is counted from the first day of the last menstrual period gestational weeks, gestational months, due date, need to be calculated according to the natural week, 4 gestational weeks is 1 gestational month, and not 30 days is 1 gestational month, due date is 40 weeks of pregnancy. 39 weeks is close to about 10 months of pregnancy, close to the due date, there will be different degrees of back pain, leg swelling, and even small abdominal pain situation, is a common late pregnancy symptoms, you can appropriate exercise, climb stairs, do deep breathing Exercise to improve the body’s resistance and help to deliver quickly later. If there is redness, irregular contractions, water breaking in the amniotic sac or obvious pains, etc., it means that you are about to give birth, go to the hospital for examination, prepare for labor, and prepare the delivery kit in time for delivery. Pay attention to your diet in your daily life, try to match meat and vegetables, replenish the nutrients and vitamins needed in your body, do not eat too cold and spicy food, otherwise it is not good for the health of the fetus.