OK. last Sunday(oct.26) my boyfriend and I had sex...we used a condom..and its been a while for me and it was really rough...the next day i bled a little bit.. but thats not what i'm worried about because the sex was so hard..

that Wednesday(oct. 29) night I had very light cramping(barely there).. and it freaked me out so the next day(4 days after we had intercourse) I got Plan B.. (i still took it even though its not as affective after 3 days).. its now a week after we had sex (nov.3) and I'm still getting these very light cramps.. along with a loss of appetite...(im not sure if i have this loss of appetite because i'm so nervous. or for other reasons)

Im not late for my period yet.. I'm not suppose to start for about another week.

I've read that cramping is normal in pregnancy but just 3 days after sex?!?!
could the cramps be something else??