In early pregnancy, women will have symptoms such as menstrual arrest, nausea and vomiting, drowsiness and fatigue, breast swelling and pain, etc., which need to be analyzed specifically. 1. Menstruation stops: In early pregnancy, due to the role of estrogen and progesterone, the uterine lining will be relatively stable, and generally will not produce the phenomenon of shedding, which is manifested in the cessation of menstruation. 2. Nausea and vomiting: in the early stages of pregnancy, the body’s hormones rise rapidly, as well as the pregnant woman’s own high degree of mental stress, will be manifested in nausea, vomiting, drowsiness and fatigue and other early pregnancy reactions. The nausea and vomiting will gradually disappear after 12 weeks of pregnancy. 3. Breast swelling and pain: when pregnant, the rise of estrogen and progesterone will promote the development of the mammary glands, breast swelling and pain, nipple enlargement, areola deepening and so on. If a woman suspects that she is pregnant, she needs to go to the hospital in time for blood hCG measurement, and under the guidance of the doctor to clearly determine whether pregnancy has occurred, and whether the state of pregnancy is normal.