hello ladies. its been a while since i've been here.

fiance and i had sex a couple of times early this month using condoms each time. about a half a week before my period was due, we had unprotected sex two days in a row and he didn't pull out. since it was so close to my time of the month, i bled a tiny bit that i noticed while cleaning up after sex. it was just a bit pink on the tissue and then ceased to be. the next day i had a little bit of stringy pink colored cm on the tissue and that was it also. i haven't seen any color since but i'm cramping every now and then throughout the days. so far i haven't seen any period yet. i've taken two tests but not with fmu as i know i should and they have come out negative. right now i have a lot of cramps in my abdomen and the lower back. i've been sick to my stomach feeling every day for like 4 days now. that could be due to the fact that i am on paxil though and have been taking my pill at different times during the day. (and i know that if i become pregnant, i need to stop the paxil right away.) i've been getting real hot today too and i've even had some off and on dizziness the last few days.
what do y'all think the chances are of me being impregnated that late in my cycle and so close to my period?

thanks guys!
-cythreal