The first 10 days of pregnancy are usually asymptomatic. At 10 days into a first pregnancy the embryo has just landed and the magnitude of the changes affecting hormone levels in the body is very small and there is usually no noticeable reaction. The reaction starts at 6 weeks of pregnancy. This reaction becomes “early pregnancy reaction”, early pregnancy reaction includes nausea and vomiting, drowsiness, body fatigue, mental weakness and other symptoms, as long as the symptoms are not very serious, the development of the fetus is normal, early pregnancy reaction is a normal manifestation, do not have to worry too much. Early pregnancy has any symptoms should be early to do examination, diagnosis, early pregnancy do not have too much psychological pressure, maintain a good state of mind, regular maternity examination.