Two days of pregnancy usually do not have obvious reaction, pregnancy reaction mainly appears in early pregnancy, that is, the first trimester of pregnancy, pregnant women may have nausea and vomiting, breast swelling and pain, frequent urination and other symptoms. 1. Nausea and vomiting: nausea and vomiting will also occur in early pregnancy, but it varies from person to person, some people are more obvious, some people are more mild, if the vomiting is more intense, you need to consult a doctor as soon as possible. 2. Breast tenderness: Early pregnancy, some pregnant women will experience breast tingling and itching sensation or areola color change, which is a normal phenomenon. There are many symptoms of early pregnancy, in addition to easy fatigue, frequent urination and other symptoms. But if there is severe abdominal pain, obvious bleeding and severe dizziness, it is also necessary to cause alarm, should go to the hospital in time, and follow the doctor’s instructions to deal with the treatment.