1. The first stage of pregnancy: changes in the first three months of pregnancy. In the first three months of pregnancy, the fetus is developing rapidly, and the mother\’s body will also experience many changes. This stage is one of the most critical periods of pregnancy and requires special attention to health and nutrition. 1. Physical changes in early pregnancy After pregnancy, a woman’s body will undergo a series of changes. , the breasts will become more sensitive and plump, and the skin may break out