my wife 8th months has started and she is getting cramps sometimes in her lower abdominal.. i

A. Stomach pain in the third trimester can include gas, constipation, and Braxton-Hicks contractions (false labor). While these can cause some abdominal discomfort, they shouldn't cause excessive amounts of pain. Abdominal pain that's more severe and concerning can be caused by: urinary tract infection (UTI)