Really Scared...

So, my boyfriend and I had sex about two weeks ago for the first time. (Not on any birth control yet.) The condom didn't break, but it was VERY expired, something we figured out after it was over and done with. Despite that, he still pulled out. A week later, I took Plan B because we had unprotected sex a couple days after our first time. This time, he also pulled out, but I wanted to be safe and get the Plan B pill. My period starts in 6 days. After it's over, I'm going on the pill. Will I be late? Is it possible I'm pregnant? Am I just freaked out for no reason?