The contractions usually hurt once every 2-3 minutes and last about half a minute at a time. If there is pain in the abdomen, you need to go to the hospital for delivery in time. The whole process from the beginning of regular uterine contractions to the delivery of the fetal placenta is called total labor, which is clinically divided into 3 stages, i.e. 3 stages of labor. The frequency of contractions is gradually accelerated and the duration of contractions is gradually extended as labor progresses. At the beginning of labor, the opening of the uterus has not yet opened wide, and the pain is once every 3-5 minutes and lasts for about 10 seconds. As the labor progresses, the contraction interval shortens and the duration lengthens. After the opening of the uterus to 3cm, it enters the active phase, with pains once every 2-3 minutes, lasting for about 30 seconds. When the opening of the uterus is complete and the second stage of labor begins, the pains will occur once a minute at intervals and last for about a minute. During the process of labor, if the abdominal pain is not very severe, pregnant women should try to get out of bed and walk back and forth to help promote the dilatation of the cervical opening. Labor is a naturally progressing physiological process, and it is important to observe both the changes in the labor process and the well-being of the mother and child throughout the labor process.