The earliest manifestation of pregnancy signs: 1. For women who have regular menstruation, the first thing that appears is menopause. Healthy women of childbearing age with a history of sexual intercourse should consider the possibility of pregnancy once they have menstrual periods.2. Early pregnancy reaction. In general, about six weeks after menopause, there are early pregnancy reactions such as chills, dizziness, fatigue, drowsiness, lack of appetite, acidophilia, anorexia of greasy food, nausea, morning sickness, etc. 3, frequent urination. Due to the enlarged uterus in the pelvic cavity pressure on the bladder caused. 4, changes in the breast. A good number of pregnant women in the early stages of pregnancy, breast swelling and pain, gynecological examination found that the volume of the breast gradually increased, there are obvious veins revealed, the appearance of Montgomery’s nodes.