Symptoms of early pregnancy The early stage of pregnancy usually refers to the 1 to 3 months of pregnancy. It is the period when the embryo develops most rapidly and the pregnant woman\’s body is the most sensitive. At this stage, pregnant women often experience some discomfort symptoms, such as nausea, vomiting, breast tenderness, etc. The following are common symptoms in early pregnancy: 1. Nausea and vomiting: This is the most common symptom in early pregnancy