The hardness of a pregnant woman’s stomach is basically due to contractions. Starting from the 28th week of pregnancy, false contractions will occur from time to time in the abdomen. If a pregnant woman stands or sits in the same position for a longer period of time, she will feel a burst of hardness in her abdomen, which is called false contraction. These contractions are characterized by irregularity in timing and intensity. As the delivery date approaches, contractions will become more frequent and the hardness of the stomach will increase. Pregnant women are advised to go to the hospital in time and actively wait for labor in the hospital.