pregnant??

Okay please no hate. I am 7 days late for my period, and I am very worried. But here's the thing. He didn't come inside of me. I was giving him a bj and since I didn't want it in my mouth I rubbed him off and he came on my legs/ass. Is it possible to get pregnant? I wiped it off pretty fast and I don't remember any getting to close to my vagina. It's just the only thing I can think of where it could have happened..