Help please?

My bf and I were having sex last night, and everything was fine (seriously we are very careful and check the condom regularly) until he mis thrusted and kinda just hit the outside of my asshole instead of inside my vagina and that's when we had a condom break for the first time (we heard the pop and everything so to say we immediately stopped is an understatement) so he took it off and threw it away, I went to go pee and made sure to wash away with lukewarm water just in case some somehow dripped from my asshole to my vagina and we stopped from there. I should get my period in about 2 weeks or so, but it has been a bit irregular lately. I cant really get plan B, how likely is it that I'm pregnant?