Many changes occur in a woman’s body during pregnancy.

These changes, although most apparent in the reproductive organs, involve other body systems as well. Weeks may pass before the female realizes she has become pregnant or she may learn upon a visit to a doctor for other reasons.

Confirmation of her pregnancy is most important for both the mother and the fetus. It is then when she can begin receiving medical care for the health and welfare of herself and the baby. In this lesson, we will cover key definitions and present presumptive, probable, and positive signs of pregnancy along with tests used to determine pregnancy.