So, I was just having...relations...with my husband. I was on top and when I went to assume the position (lol), I felt this muscle-pulling/something turning over/really solid feeling. I asked DH if he accidentally hit my stomach. It was directly above my belly button to the right (my left). When I was upright like that, my stomach was firm and there was a hard spot but the more we gently pressed it went away. Could this be baby? I'm only 9 weeks. It's my second pregnancy and I also have a tilted uterus if those factors have anything to do with it. I never felt that sensation ever with my son!