What should I do?

Okay so me and my boyfriend recently had intercourse and usually he takes care of his "business" in the condom like normal, but this time something different happened. It was the spur of the moment and neither of us had a condom so he suggested the pull out method and I was like alright fine. But now I'm very concerned since I was supposed to get my period 3 days ago. Is there a chance I could be pregnant?