The time when the fetus enters the pelvis is usually around 37-38 weeks of pregnancy, but due to the different physical conditions of pregnant women, labor is possible 1-4 weeks after entering the pelvis, and the exact time of delivery depends on the time of cervical opening dilatation. If the opening of the uterus is open, the labor will usually enter into labor and delivery soon. If the abdominal pain is severe, consider contractions, it is recommended to go to the hospital to check the degree of dilatation of the opening of the uterus, the strength of contractions, and the frequency of contractions, so as to determine the general time of delivery. The specific how long it will take to give birth should be judged according to the specific circumstances: 1, first-time mothers: about 2-4 weeks after entering the pelvis may give birth, the specific time can not be accurately predicted, there is a certain amount of individual differences. The fetus is affected by many factors in the process of growth and development, so the time of delivery will be different. 2, women who have given birth: they will be in the pelvis only when they are close to delivery, and they will give birth about 1-2 weeks after they are in the pelvis, or they will be in the pelvis during the delivery process. When the fetus is in the pelvis, the pregnant woman will feel a burst of tightness or swelling in the abdomen, irregular contractions and frequent urination, but this is not a sign of labor. Only when there are regular contractions, redness and water breakage, it indicates labor. Pregnant women are advised to be ready for delivery when the fetus is already in the pelvis, and to pay attention not to perform strenuous exercises in general to avoid premature delivery.