Can you get pregnant

First off I have never had sex Ed. Me and my br were fooling around and we didn't have "sex" since there was not penetration just like pressure on the outside of vagina. and this was only for a few seconds what are the chances I could get pregnant from this encounter since there wasn't full penetration and no ejaculation. 
PLEASE I NEED MORE THAN ONE ANSWER IM FREAKIG OUT. 
Ps yes I know I should've used protection