The contraction once every 5 minutes can be regarded as a sign before delivery, and usually pregnant women will give birth within 24 hours, but the specific delivery time varies from person to person, and it is related to whether the mother is a first time delivery, the specific fetal position and the relaxed state of the birth canal. 1, first time delivery: for first time delivery, from the beginning of regular contractions to the completion of delivery, it will last about 12-18 hours, if the fetal position is suitable, the size of the fetus is moderate, and the birth canal is relaxed. If the fetal position is suitable and the size of the baby is moderate, the birth canal is also more relaxed, usually the duration of labor will be shorter. Therefore, women can eat or rest between contractions to preserve their strength for delivery. During this period, the mother can walk or move around moderately, which will help the opening of the uterus to speed up the birth process; 2, the woman in labor: the second or multiple births of pregnant women may progress faster, usually 6-7 hours to birth. Therefore, pregnant women need to go to the hospital in time for labor when they feel regular contractions, or even when they see redness or water breaking, to ensure smooth delivery of the fetus. The strength of the contractions is closely related to the rate of dilation of the uterus. If the contractions strengthen slowly and last for 30 seconds with an interval of 5-6 minutes, accompanied by the opening of the uterus and the descent of the fetal head, it means that labor has entered. Pregnant women are advised to adjust their breathing rhythm and maintain a stable mood. If the contractions are too long and the baby is not delivered successfully, it may lead to intrauterine distress and the doctor may recommend a cesarean section or vaginal assisted delivery to avoid fetal asphyxia.