Typical early signs and symptoms of pregnancy and common pregnancy symptoms by week and trimester.
Pregnancy symptoms and signs of pregnancy are different from from one woman to the other and pregnancy to pregnancy; however, one of the most significant pregnancy symptoms is a delayed or missed menstrual cycle. Understanding the signs and symptoms of pregnancy is important because each symptom may be related to something other than pregnancy. Some women experience signs or symptoms of pregnancy within a week of conception. For other women, pregnancy symptoms may develop over a few weeks or may not be present at all.