Pregnant?

Cr
Ever have a scare? I am.. my bf of 7yrs, we've use condoms ALL THE TIME for the last 2yrs!! And now my period is 6days late. He doesn't believe that I could get pregnant because of the condoms. But idk guys. I've been stressed, really bad for the last couple weeks.. I know stress plays a part in delayed periods, but I'm not sure what going on.. anyone else experience this or similar? What did you do and how did you go about it? This feels like the worst Valentine's, ever..