What are the chances of my pregnancy?

Ok i had for the first time. we did not use a condom and it lasted like 2 hrs. I thought i was pretty close to my next period so it thought i had nothing to worry about. now i am scared. i am only 14 and i was told it was extremely easy for me to get pregnant. he said he would pull out before he came...but there are natural lubricants and stuff that comes out prior to the big one. I am scared...what are my chances?