am i pregnant?

i was having sex with my boyfriend! we used a condom but it riped so we took it off and continued! we wer both a bit drunk and he took his penis out before he came, he z i didnt get any in me but im nt sure. four days later i started bleeding not much tho n now six days l8r im still bleeding a little(not my period), i feel really weak n tired and have slight pains in my stomach! could i b pregnant?? please gove me your opinion

thanks Karen