Abdominal pain may occur in early pregnancy, which may be due to physiological causes or pathological causes such as pre-miscarriage or intestinal discomfort. 1. Physiological phenomenon: early pregnancy due to the rise in estrogen and progesterone and fertilization of the egg may cause the uterus to contract slightly, which in turn causes some stimulation of the pelvic tissues, a transient pain in the abdomen. There may also be a slowdown in gastrointestinal peristalsis after pregnancy so that stools accumulate in the intestines for a long time, which leads to abdominal pain, which is a physiological phenomenon and does not require special treatment. 2. In early pregnancy, because the fetus in the uterus is still unstable, if the embryo quality is not good or the pregnant mother overworked or abdominal impact, the phenomenon of preeclampsia may occur, resulting in abdominal pain, vaginal bleeding and other phenomena, this time you need to seek medical treatment in a timely manner. 3. Intestinal discomfort: increased secretion of estrogen and progesterone after pregnancy will slow gastrointestinal peristalsis, resulting in slower gastrointestinal emptying, may also cause mild abdominal pain and discomfort, mostly relieved after defecation. Slight transient pain in the abdomen in early pregnancy may also be normal, if the abdominal pain aggravates or persists unrelieved or vaginal bleeding need to consult a doctor in time.