1. Breast changes One of the early symptoms of pregnancy is breast changes. During the early stages of pregnancy, a woman\’s hormone levels change, which may cause her breasts to feel more sensitive or swollen. Additionally, the nipples and areolas may become more sensitive or darken. 2. Nausea and vomiting Nausea and vomiting are common symptoms of pregnancy. This usually occurs during the first trimester of pregnancy, but some women may experience this feeling throughout their pregnancy. Although it\’s unclear why nausea and vomiting occur, it is believed to be related to changes in hormone levels. 3. Fatigue Early pregnancy may make you feel very tired.