HELP! Possibly Pregnant?

So I'm late on my period by 5 days, but I'm on birth control AND use condoms. On the day I was supposed to start, I had dried blood only for just 2 days and that was it. I'm not sure if I can count that as a period? I'm not experiencing other symptoms of pregnancy, and I've read that stress can delay your period up to 10 days, but now I'm starting to freak out.