Tight and hard stomach in late pregnancy can be caused by false contractions and poor diet. When a woman experiences a brief, tight, hardening of the abdomen in late pregnancy, this could be a false contraction. These contractions do not cause the cervix to open, so labor is not yet imminent. Bed rest and resting in the left lateral position may help. If these contractions are persistent, they may be caused by a poor diet (spicy, cold or raw food). During pregnancy, it is important to have regular checkups, especially in the later stages of pregnancy, and to closely monitor all aspects of the fetus’ condition. The presence of redness and regular abdominal pain is usually a precursor to labor. A doctor’s consultation is required to determine the exact situation.