I'm so scared ... Ugh

Me and my bf had sex two days ago, and he pulled the condom off after he nutted in me and he flipped it off... Hard to explain, but in the end it was inside out, and the cum went like on my arm and who knows where else. I'm just scared. He was sitting up and I was laying down. I'm so scared some could have gotten somewhere, even though i didn't feel any.  I'm just paranoid because now I'm cramping