The earliest symptom of pregnancy is menopause or abnormal menstruation, which may be followed by symptoms of early pregnancy such as chilliness, dizziness, salivation, weakness, drowsiness, lack of appetite, nausea, morning vomiting, preference for acidic food, breast swelling and mood changes. As the pregnancy week increases, symptoms such as frequent urination and constipation may appear, which can be diagnosed by early pregnancy test paper or blood HCG and ultrasound. After the delay of menstruation, keep your mood relaxed, get enough sleep, eat a balanced diet with three meals, eat warm fruits appropriately, prohibit strenuous exercise and medication, and prepare for pregnancy. If you are pregnant, pay attention to abdominal pain and vaginal bleeding. It is recommended to go to hospital for examination about 45 days after menopause to determine whether it is intrauterine pregnancy and whether there is fetal heart and fetal bud.