- Pregnancy begins when a fertilized egg is implanted in the uterus.
- Women may experience a number of symptoms that are common during pregnancy.
- Fetuses grow and change radically during the course of pregnancy.
Women go through many changes during each stage of pregnancy. Many of the symptoms of pregnancy and the changes they face are common to all healthy pregnancies. The stages of embryonic and fetal development also follow a common pattern.However, pregnancy can be confusing and sometimes mysterious. It is normal to ask what happens during each stage of pregnancy.