Making out…. Pregnant?

Patient: Hello, last night my boyfriend and I were making out, he was on top of me. I know I got extremely “wet” down there, I was wearing underwear and leggings while he was wearing thick under armor boxer briefs and basketball shorts, but it only seeped into my underwear, not my leggings. Anyway is there any possible way I could get pregnant? I’m not sure if he also got “wet” down there. I am not sure if semen can travel through 4 layers of clothing. I am on birth control if that helps. Thank you

Symptoms: Stressed