PLEASE HELP!!

sasha
We had sex last night, but it was literally quick, like he only lasted a minute. We usually always use a condom, but we were in the mood, and we didn't. He pulled out, and jacked off for about 3 seconds before he finished. He was positive he did not cum inside of me, and he said he says I'll be fine and I have nothing to worry about. Please help, I need some reassurance/advice because i'm freaking out. I am currently ovulating, and I was last night when I had sex. Someone please help!!