Fear of pregnency???

It is possible that you're pregnant, but I think it's very unlikely, since you said your period should be here in two days. If your period does not come when you expect, take a home pregnancy test and see a doctor. Then start worrying. Birth control is not a bad idea if you're not wanting a baby yet. Talk to your doctor about your options. I commend you for using a condom in the first place. That means you're trying to protect yourself and your partner, not only from unwanted pregnancy, but from STD's as well. Good luck!