Has anyone ever had a saline u/s? I bled postpartum for 4 weeks then stopped for 2 weeks. I got a period and it has now last for 19 days. It was really heavy for the first 12 days and I started Aygestin (a hormone) and it is now a heavy spotting for the last week. I go in tomorrow for a saline u/s and wondering if it is painful. I read a little on-line and know what it involves but sounds like it could be uncomfortable.