Your belly or bump will also increase in size, as your baby grows and fills up the space in your uterus. You can expect your weight to change almost everything month by about 3 to 4 pounds. You will notice an increase in the tenderness of your breast, as well as an increase in size as they begin to prepare for milk production. Some women also report a change in their skin during the second trimester. These changes can include dark patches on your skin and the beginning of the linea nigra, or dark line, on your belly. With the weight gaining and bump growth, you might also notice stretch marks or an increase in the itchiness of your skin.
Leg cramps, dizziness, nasal congestion, nosebleeds, and bleeding gums can also occur during the second trimester. You will also notice a thin, white vaginal discharge, which is designed to help your body fight off infection.