I don't quite know what to do. I've done pelvic and transvaginal ultrasound and they still couldn't see anything in my uterus. mind you they didn't say anything if they saw anything in either of my tubes. I don't know if they even checked. but my hcg levels have gone down and they don't think it is a ectopic pregnancy but they don't know if it is a miscarriage either. My period was from March 16th to the 21st so I'm not far along at all but the fact they don't know, is starting to make me worry.