There are the following manifestations in the early stages of pregnancy: 1. For women with regular menstrual cycles, menstruation does not come as scheduled and menopause occurs. 2. Swelling of the breasts, due to the action of hormones the mammary glands begin to grow and develop swelling, the color of the nipples increases, and Montserrat nodules appear around the nipples. 3. Physical fatigue, in the early stages of pregnancy, women may feel malaise, general weakness, drowsiness, and even nausea 4.Due to the level of progesterone, some women’s body temperature will increase by 0.3-0.4℃, and more sensitive women can feel some hypothermia. 5.In the early stage of pregnancy, due to the change of hormone secretion, the uterus expands, causing pressure on the bladder and increased blood flow. The pressure on the kidneys causes an increase in urine, and pregnant women experience frequent urination symptoms.6. Pregnant women may be emotionally unstable and often have unexplained irritability, tantrums or loss of temper.