Chances of being pregnant?

I had sex for the first time and during that day we had sex 4 times, 3 were totally safe, and the fourth time we didn't have a condom and did something stupid. We were doing everything else like fingering, oral, grinding, etc. I had no clothes on and he had his underwear on. When I was on top of him grinding we made a bad judgement call and we took his underwear off, now I grinded on his dick (he didn't go in yet), I sat near his dick on his lower stomach (by the tip, he wasn't in yet) and then suddenly he just whispered in my ear "do it if you want it" and I did it... he went in but only once then I took it out and he fingered me. (I know he had precum on him as I gave him a bj just before and I tasted it) we had sex with a condom before that and he finished and did not go to the bathroom before we did it again, I've read about precum and says that you can only get pregnant if the sperm fun was still in the urethra... also I was ovulating when this happened.. I'm only 16, I made a bad judgement call and I'm scared. Its too early to take a test as it's only been two days. But What is the likelihood of me getting pregnant from this?