On Monday I had a pelvic ultrasounds to check the thickness of my uterine lining because I am in menopasue. The doctor says it is necessary to do that. I had no complaints, pain or discomfort before the test. During the test I felt mild cramping almost like labor pains. When the test was done I felt fine and left. Later in the day up until today, Thursday,I feel discomfort in my abdomen, not pain but mild discomfort like something is wrong. When I press down hard on my abdomen, it hurts but doesn't hurt when I walk or go to the bathroom or anything like that. I feel like a pressure and just discomfort I know something is wrong. What could it be?