Common Symptoms in Early Pregnancy Early pregnancy is a very special period, and this period is very important for unmarried mothers. In the early stages of pregnancy, many women will experience symptoms including physical discomfort, emotional instability, etc. Below, we will explain in detail the common symptoms of early pregnancy. Physical Symptoms A series of changes occur in a woman\’s body during early pregnancy. Some women experience uncomfortable symptoms such as headache, nausea and vomiting. This is caused by changes in hormone levels in women after pregnancy.