Generally speaking, the stomach is hard and tight at 39 weeks of pregnancy, and the labor will be expected in about 7-10 days, but the exact time cannot be specified, and there are differences for each pregnant woman. If a pregnant woman has a hard and tight stomach at 39 weeks of pregnancy, it may be due to pseudo contractions, which do not need special treatment. If there are 2-3 contractions with abdominal pain in 10 minutes, lasting for more than 30 seconds, or if redness is seen, it indicates labor. In addition, it is necessary to monitor the fetal heartbeat and fetal movement to know whether the fetus is hypoxic in the uterus, and to do ultrasound to know the size of the fetus, the amount of amniotic fluid and the maturity of the placenta for reference for delivery.