am I pregnant ????

Someone please help! I was having sex and the condom broke we noticed about 2 seconds later he pulled out. He didn't cum yet or anything but i know just even a little sperm can make me pregnant. I am only 15 so I can't tell my mom or drive to get plan B. I have pregnancy tests but my period isn't for 2 weeks. Anyone have any suggestions? I am such a nervous wreck.