Thanks Mel. I wasn't told that it was supposed to be midstream, maybe i was just supposed to assume that? i don't have any other symptoms or anything like that, which is why i am worried it could have been an STI. i had chlamydia before right when i found out i was pg and i didn't have any symptoms at all, so now i automatically jump to conclusions whenever something comes up. (not that i am sleeping around or being unsafe, but my bf and i had a rough patch and broke up for a while a few weeks back.. i dont know if he could have caught it again). i will call my doc though, just so I can put my mind to rest!!