cum on vagina

anna

hey girls, so my boyfriend cummed on my vagina and we both think that some of it might have dripped into my vagina. and then he also put his finger inside me and i wasn’t sure if he had precum his fingers when he put them inside me. Just to be safe, an hour after i took a plan b! Do you think i should be ok? also i know that it’s hard for sperm to get into the vagina if it’s on the outside but it’s still a possibility and that’s what i’m concerned about.