Is there a chance i could be pregnant?

My boyfriend and I are very sexually active. He hates using condoms but most of the time I force him to use them. Sometimes I don't force it. Today we were going on or third round and he didn't pee before and. Well we had sex. He ended up not coming though because he went flaccid like half way through. Probably because we had done it so much already in less than 2 hours lol..whoops. also I am taking birth control and I'm pretty consistent with it. Is there a chance i'm pregnant ? My period is due in about a week and a half, too.