I think I’m pregnant at 17 and I’ve never been more scared

I had sex with my boyfriend 2-3 weeks ago. We used condoms and checked for holes and there were none. I remember him saying that he saw some white stuff on the outside of the condom but we just assumed it was my discharge or the lube. My period is 2 days late now and I had to excuse myself from breakfast because I felt so nauseous. I go to college next week and I don’t know if I should take a pregnancy test now or wait until I am in college. I am so scared I am just crying for help. I know nobody can give me an answer but I just need help