Help???????

Me and my new boyfriend have only had sex 3 times. The first time, he didnt get to finish (long story), the second time he pulled out but it got between my leg, like. Where my leg meets my vagina, in that crease. The third time he pulled and it got on my butt. My question is, has anyone somehow gotten pregnant from anything similar? It didnt get in my vagina that I know of, I'm just nervous though cause I already have a 1 year old.