Today I had a pelvic ultrasound. My ob/gyn ordered it when I went to see him to talk to him about TTC and some pain I have been having. The ultrasound tech asked me "have you taken a pregnancy test?" I said 'yes, I am 10dpo today and it was negative' and she said 'oh, because I think I see a sac in your uterus!" She showed it to me and sure enough, there was a little sac. She kept looking and kinda smiling but not really saying much else. I asked her if it wasn't a 'baby sac' what the heck else could it be??? She of course said she could not really say what she thought! I left with no answers except that my dr. would have the results in the next day or so... What gives?!?! I don't have a picture because this was not a pregnancy ultrasound just a pelvic one looking for the cause of my pain. Does anybody have any idea as to why there would be a sac in my uterus other than I may be... i can hardly even say it.... pregnant????