1. Physical changes in the second month of pregnancy. In the second month of pregnancy, the fetus has begun to form organs, and the mother\’s body has also begun to change. Common physical changes include breast tenderness, nausea and vomiting, fatigue, etc. At this time, the mother needs to pay attention to maintaining good eating and rest habits, and at the same time have regular prenatal check-ups. 2. Things you should pay attention to during the second month of pregnancy. The second month of pregnancy is one of the most critical periods for fetal development. Mothers need to pay attention to the following points: avoid overeating, avoid contact with harmful substances, and maintain a good attitude.