After pregnancy, there are usually reactions such as menopause, early pregnancy reaction and breast changes, which need to be analyzed specifically. 1. Cessation of menstruation: Healthy women of childbearing age and sexually active, who usually have regular menstrual cycles, should consider pregnancy once menstruation is delayed. Cessation of menstruation may be the earliest and most significant manifestation of pregnancy. 2. Early pregnancy reaction: Due to the change of hormone levels in a woman’s body after pregnancy, she may experience chills, dizziness, drowsiness, lack of appetite and other manifestations. 3. Breast changes: After pregnancy, the level of progesterone in the female body rises, women may consciously breast swelling and pain, breast volume increases, nipple enlargement, nipple areola color deepening, sebaceous gland hyperplasia around the areola appearing dark brown Montgomery’s nodules. After pregnancy, women may also have frequent urination due to the anteriorly inclined uterus pressing on the bladder in the pelvic cavity. If women have the above related manifestations, it is recommended that they consult a doctor in a timely manner, under the guidance of the doctor, and complete the relevant examinations to clarify whether they are pregnant or not.