Early pregnancy reactions usually occur during the first month of pregnancy, but the exact manifestations and extent vary from person to person. The following are some of the main symptoms: 1. Nausea and vomiting: this is caused by hormonal changes in the body after pregnancy, and is one of the most common symptoms, and some pregnant women will continue from early pregnancy to the end of pregnancy, but the specific severity and duration vary from person to person. 2. Changes in appetite: some people will have an excessive appetite, while others will show a loss of appetite, the specific circumstances vary from person to person, but they are relatively normal. 3. fatigue, drowsiness: in the early stages of pregnancy in the body of various hormone levels will change, which also led to a part of the pregnant women sleepy, fatigue symptoms. One month pregnant, some people do not have obvious discomfort or changes, if you suspect that you are pregnant, it is recommended to buy early pregnancy test paper to test or go to a regular hospital for relevant examinations.