I know its hard, everone says "never listen to anything guys say" and your like yea I wont, but you do it anyways.. Everyone has been there.
You can get pregnant from unprotected sex even if he didnt come inside you.. So please, always use protection. I'll spare you the lecture.,but its very important.
My advice to you would be this, until you get more informed about sex and how reproduction works, stop having sex.. I'm not dissing you at all, I was in your place for a long time.
You can wait about 10-14 days to take a pregnancy test if you are worried, or wait for your period.
By the way, im michelle.. Im 15, and im pregnant with my first child..If you ever need anything, pm me.. Good luck hun :d