The feeling of menstruation in early pregnancy is related to the secretion of hormones in the body. In the early stage of pregnancy, due to the increased secretion of estrogen in the body, it may show slight stomach pain and cramping, or show loss of appetite and fatigue. Due to the different physical conditions of individuals, the clinical symptoms manifested are different. In general, patients will show early pregnancy reactions such as loss of appetite, nausea, vomiting, and vague pain or dull pain in the lower abdomen. As the pregnancy month increases, the uterus will grow and involve the uterine ligaments, resulting in more obvious pain, and will also show changes in the breasts, with breast swelling and pain, darkening and widening of the areola, as well as nipple pain and breast swelling.