Peeing after sex?

I've been having to pee after sex almost every time. Not sure if this is a pregnancy thing or not. (I'm not sure if I am pregnant or not) but what could this mean? 
EDIT: it doesn't burn when I pee, and I know for a fact I don't have an infection lol. I've been checked recently 
EDIT AGAIN: I always pee after sex...that's not what I was saying.. It's just a huge urge to pee now. I can't even really hold it during sex