There will be some characteristic manifestations in the early stage of pregnancy: 1. The most characteristic and earliest manifestation is the appearance of menopause, once the usually regular menstrual cycle is delayed for a week, the possibility of pregnancy is very high; 2. When the fertilized egg is in bed, some women will have a small amount of light pink or brown discharge; 3. The typical early pregnancy reactions will appear around 40 days of pregnancy, such as nausea, vomiting, anorexia, tiredness, fatigue, dizziness, frequent and urgent urination, breast swelling, deepening of nipple areola coloring, frequent and urgent urination and other symptoms.