Omgg Am I Pregnant?!

I am 15. I'm stupid. I've been messing around with my boyfriend and we used a condom, he constantly checked it every ten seconds or so and he pulled out way before he came. My period is a week late. I'm dead and my life is over if it turns out that I'm pregnant... 😭😭 I have finals week right now and my stress levels are through the roof from school and work and worrying about this. I don't know if I'm pregnant or just driving myself nuts 😭 Someone help please! I'm so freaking dumb!! I've had some symptoms that could be either period or pregnancy related... Increase in acne, back pain, random light cramps, headaches, moodyness. My period is usually a bit late but this is really late. I'm just really worried 😣