Women’s body will undergo a series of physiological changes after pregnancy, the general initial symptoms are as follows: 1, menopause: menopause is the earliest and most important signal of early pregnancy, where the menstrual cycle has always been normal married women of childbearing age, if the menstrual period is more than 10 days, should be considered to have the possibility of pregnancy, need to go to the hospital for examination to confirm the diagnosis; 2, basal body temperature changes: women’s normal basal body temperature is a two-way curve, that is If the menstruation is due to come, the body temperature will no longer fall after rising and remain above 18 days, it means that you may be pregnant; 3.Early pregnancy reaction: after 6 weeks of menopause, pregnant women will have early pregnancy reaction such as nausea, vomiting, weakness, drowsiness and acidity due to the change of hormone level in the body, and some patients will have emotional changes, which will last for one month or so. 4. Increased urination: After 8 weeks of pregnancy, pregnant women can experience increased urination due to the enlarged uterus pressing on the bladder, but we should also exclude whether urinary frequency is caused by urinary tract infection; 5. Breast changes: After 1-2 weeks of conception, pregnant women will feel breast swelling and pain. Due to the stimulation of pregnancy, many estrogens and progesterone will be produced in the body of pregnant women, resulting in the growth of breast glands and the gradual increase in breast volume, as well as the enlargement of nipples and the deepening of nipple areola coloring. The above symptoms usually last until the third month of pregnancy, but not everyone will react in the first trimester. Therefore, once these symptoms appear, it is recommended that women go to the hospital for a urine pregnancy test or blood HCG, along with ultrasound to confirm the diagnosis.