Have a few question regarding cleaning up after Masturbation. I am 19. I have a fear that I may get someone pregnant from them comming into contact with semen that I may have missed cleaning up by acident. I live in a house with 6 girls and 3 of them share the same bathroom as me. I masturbate about once a week or less and after I do so I am really really nervous. I have looked all over the internet and noone has a solid, or even remotly similar answer. Some examples would be: missing the toilet and getting it on the seat, touching the doornob, opening a cuboard or touching the counter, or cleaning myself up in the shower afterwards (or after a wet dream), and getting it on the shower walls, or soap dispenser. Any help with proper ways of cleaning up would be greatly appreciated, along with other options to lessen the risk, etc.