[Coffee.]

I mean, there's a tiny tiny chance that somehow one single sperm on the tip of his penis from a previous ejaculation was there, and it somehow made it all the way up your vaginal canal and implanted. But this is incredibly unlikely. You can take a test in two weeks, but personally, I wouldn't worry about it. I'd also recommend you get some condoms for next time! They're sold at any major drugstore, and you can get them free in some clinics. Consider also trying a birth control method if you want to continue to be sexually active with him, but condoms are good for your first time because they're pre-lubricated. I'd also add more lube too. Finally, if you're not ready, express that to him! It's okay. Good luck!