The 5 Most Common Kinds of Stomachaches During Pregnancy, and How to Stop Them

Usually when it comes to stomach pain during the second trimester, ligament stretching is the main culprit. It's characterized by sharp, shooting pains in the lower belly or groin area on one or both sides of the body. Hoskins said that the cause is pretty straightforward: "This pain is due to stretching of the uterine wall and stretching of the ligaments (especially the round ligament) that support the sides of the uterus. It occurs because the pregnant uterus is enlarging and growing out of the pelvis."

The best way to treat it? By applying an ice pack to the area in 20-minute intervals every two to three hours as needed.