Most of the symptoms do not appear at the 38th day of pregnancy, because the increase in hormone levels in the body is not enough to cause early pregnancy reactions. Generally, the early pregnancy reactions will appear gradually around 45 days of pregnancy, such as nausea, vomiting, anorexia, and dizziness. This gastrointestinal reaction is mainly due to the increase of estrogen in the body, which causes mild edema in the mucous membrane of the gastrointestinal tract. It is recommended to eat easily digestible food and less irritating food after the early pregnancy reaction, so as to reduce the symptoms of nausea and vomiting. It is also advisable to go to the hospital for an ultrasound examination when you are about 50 days pregnant to find out if the size of the embryonic sac matches the number of days of menopause in order to calculate the expected date of delivery.