aw it's normal to be freaked out about getting someone prego.
-listen up, you're just probally young and oviously not well informed about oral sex or sex in general.
you 2 were oviously having some sort of oral sex or maybe just an intense make-out session.
but unless you 2 were butt naked, and your had sperm on your penis and it was anywhere near her vagina then there is a chance of something called a 'splash' which means a teany bit of your sperm accidently went in her. thats when there is a chance she may be pregnant.
just be carful next time and take it slow.