My boyfriend came inside me three weeks ago and then a week ago, as well. I got drunk last night. This morning when I woke up, I had this severe sharp, random pain near my upper left side, that lasted on and off all day, right underneath my rib cage. Could I of had a miscarriage? I took a pregnancy test last week the day before he came inside me again and it gave a negative result. Me and my boyfriend want a baby and we are trying but when I drank last night we didn't think about it. We should have and now i'm afraid I hurt it. It could have been gas too because I was pooping all day but it was random and went away after a slit second, not like gas where it lingers. Someone please explain what it could be!