A woman’s stomach may not become hard during pregnancy, depending on the specific situation. In the early and middle stages of pregnancy, women may not have a hard tummy, and if they experience a hard tummy at this time, it is usually not directly related to pregnancy and is mostly due to digestive problems; in the late stages of pregnancy, women may feel a hard tummy due to contractions. In addition, infection and fetal activity may also cause the pregnant woman to have a hard stomach. I. Early and mid pregnancy hard belly Early and mid pregnancy uterus enlargement is not obvious, abdominal pulling feeling is not obvious, pregnant women are more difficult to feel hard belly because of pregnancy, usually because of indigestion, gastrointestinal peristalsis and other cases of self-conscious hard belly. 1, real contractions: the pregnant woman’s lower abdomen is tight, hard, painful, can appear regular contractions, usually once every 5-6 minutes, the intensity and frequency of contractions gradually increased, accompanied by the shortening of the cervical canal and the dilatation of the uterine mouth, suggesting the approach of labor, should go to the hospital as soon as possible; 2, pseudo contractions: is a kind of irregular and weak contractions, the pregnant woman’s lower abdomen is hard, but no other discomfort. It occurs mainly at night and decreases significantly during the day. Compared with the contractions during labor, the interval is shorter and irregular. Some of the more sensitive pregnant women will be mistaken for labor contractions, generally observe the contractions are not aggravated without special treatment; 3, infection and other factors: reproductive tract infection, amnionitis, urinary tract infection, etc. may lead to premature delivery of pregnant women, thus appearing hard belly performance, in addition to frequent fetal abdominal agitation in some women will also produce the lower abdomen hard feeling, if frequent such performance, should seek medical attention as soon as possible.