Seven months pregnant stomach cramps, the common causes are as follows: a. Acute purulent appendicitis, if the pregnant woman during pregnancy to eat more high protein, high fat, high sugar food, will aggravate the burden on the gastrointestinal tract, the manifestation of acute appendicitis. If the inflammation of the appendix is more serious, it can lead to stillbirth, so once you consider acute suppurative appendicitis, you should perform surgery to remove the appendix as soon as possible to avoid endangering the life of the fetus. Second, frequent fetal activity caused by maternal colic, seven months when the fetal volume is larger, if the umbilical cord around the neck, the fetus will appear irritable, restless and other symptoms. Fetal activity is too frequent will cause pregnant women colic discomfort, can be monitored through the fetal heart as well as blood tests to understand the physical condition of the fetus.