Should i or not?

Me and my man where doing the deal and he didnt have a condom so i suggested we finished each other off with our hands he was on top of me i was kinda sittin because we where in his car and he didnt let me know he was cumming so i got it all over my leg and i had my legs spread apart not alot but i also haven't shave so it looks bushy down ther ik tmi im sorry but so u guys think it was possible for some cum to go inside of me i had cum on my hand and on my shirt but im not sure if some leaked down there and also i just got of my period yesterday? Idk if i should take plan b or not?