Early pregnancy reaction usually occurs from the 6th to the 12th week of pregnancy, i.e. around the first month of pregnancy, and basically ends in the third month. It is a normal physiological phenomenon and there is no need to be overly nervous about it. In some women, the early pregnancy reaction is longer and does not end until 16-18 weeks. Severe pregnancy reactions can accompany a pregnant woman throughout her pregnancy. Usually, menopause is the earliest and most important manifestation of early pregnancy, which is manifested by the absence of menstruation for more than 10 days. In most women, the delay in menstruation for 1-2 weeks is accompanied by a change in eating habits and tastes, such as a preference for acidic foods or an aversion to greasy foods. Some women may also experience dizziness, fatigue, drowsiness, increased salivation, loss of appetite, nausea, vomiting, etc., which mostly disappear on their own in about 12 weeks, or some women do not have any related manifestations during this period. In addition, most women have a slight swelling and painful sensation in the breast, tingling sensation in the nipple, or the formation of Montserrat nodules and frequent urination. In case of early pregnancy reaction, it is recommended to take part in some gentle activities such as outdoor walking and listening to light music to relax and avoid excessive psychological stress, which may aggravate early pregnancy reaction.