If you are 40 weeks pregnant, it is very common that you have not yet shown signs of labor, and it is normal to deliver within 42 weeks. After the expected date of delivery, the pregnant woman can go to the hospital for a maternity checkup and decide whether to perform conservative observation or terminate the pregnancy through clinical intervention, depending on the condition of the fetus in the uterus and the placenta. After ultrasound and fetal heart monitoring, if the fetus is not hypoxic, the amniotic fluid is normal, the placenta is not significantly declining, and the blood pressure and blood sugar are normal, the pregnant woman can wait for about 1 week, during which she can count the fetal movements and exercise appropriately. If there is still no sign of labor after 1-2 weeks, in order to avoid overdue pregnancy, it may be necessary to use contractions to induce labor, and if labor is still not in progress after 3 days, it may even be necessary to perform cesarean delivery. If ultrasound and fetal heart monitoring indicate intrauterine hypoxia or cloudy amniotic fluid or too little amniotic fluid, hospitalization is usually required to terminate the pregnancy by labor induction or cesarean section in order to avoid intrauterine distress.