First time without condom

So we were having sex last night for the first time without a condom. He did it really slow and kept pulling out and pulled out before he started to cum. He came on the part where you shave and right by leg and all over the couch. When I was cleaning up I don’t remember if I folded the paper towel well enough before wiping my vagina. Do you think I should get plan b? I am 17