If the belly is hard at 39 weeks of pregnancy, if it is not accompanied by abdominal pain, it may be due to labor, pseudo contractions or placental abruption. 1, labor: if the uterus has regular contractions, the pregnant woman feels her abdomen hard during contractions, and her belly becomes soft after the contractions disappear, and this feeling is gradually increasing, gradually regular, accompanied by increased pain, and no abdominal pain between contractions, this is the expression of labor. This is the performance of labor, need to go to the hospital in time to prepare for delivery; 2, pseudo contractions: 39 weeks of pregnancy, hard stomach, not accompanied by abdominal pain, may belong to pseudo contractions. Pseudo contractions will show a slight tingling sensation or a relatively distended phenomenon, but there will be no obvious pain sensation. Generally do not need to deal with, but if there are regular contractions, and accompanied by regular abdominal pain, you need to go to the hospital in time for delivery; 3, placental abruption: if the pregnant woman’s stomach has been hard, and continued abdominal pain and gradually aggravated, no interval, can be accompanied by vaginal bleeding symptoms, no signs of relief, this situation may be placental abruption, should be promptly sent to the hospital obstetrics treatment, to avoid endangering the life of the mother and fetus. Therefore, a hard stomach at 39 weeks of pregnancy can be seen in a variety of situations. Pregnant women are advised to make prenatal preparations in advance, and if necessary, go to the hospital for treatment in time to avoid unexpected situations.