I know questions relating to "dry sex" pregnancy risks have been asked quite a bit, but I was wondering if anyone has anything to say about my specific situation.

I was having "dry sex" with a girl who was in a thong. I was wearing underwear and khaki pants. While we were engaging in intercourse-like movements, I ejaculated. As I recall fluids soaked through my pants, though I wouldn't say my pants were completely saturated. The size of the stain was roughly that of a quarter or nickel. After I ejaculated, we continued what we were doing. I'm not sure if she noticed I had ejaculated because she didn't say anything until I told her. Is it likely she could be pregnant? I know nothing is ever 100% certain, but what do people think?

Thanks!