The initial symptoms of first-time pregnancy include menstrual stoppage, pregnancy vomiting, loss of appetite, darkening of nipples and areolas, and breast tenderness. Early menstruation stops in first-time pregnancies because the endometrium is affected by increased progesterone during pregnancy and does not shed cyclically, so menstruation stops naturally. The changes of progesterone, estrogen and HCG will also affect the function of the digestive system, and pregnant women often have symptoms such as nausea and vomiting in the morning or after meals, i.e. pregnancy vomiting. The diet can be adjusted appropriately and the symptoms will gradually reduce to disappear after 3 months. After pregnancy, gastrointestinal peristalsis will slow down, some pregnant women may have indigestion, constipation, can eat less and more meals, appropriate exercise to promote gastrointestinal peristalsis, reduce the symptoms. Pregnant women who are pregnant for the first time will also have changes in skin color in the early stage, mainly in the form of darkening of the nipples, areolas and midline, while the mammary glands begin to develop and the breasts gradually increase in size, and the breasts may be swollen and painful. In general, the color change of nipple and areola will gradually become lighter as the hormone level decreases after delivery and no special treatment is needed. In addition, due to the gradual enlargement of the uterus and pressure on the bladder, pregnant women may feel the symptoms of frequent and urgent urination. With the enlargement of the uterus, pregnant women may experience distension and pain in the small abdomen.