Does hot sink water kill sperm on the hands when you wash them and can sperm transfer from the hands to other surfaces and cause pregnancy?

Hot water and soap would kill sperm on hands, and water itself may do the job if wiped well. But pregnancy would require the sperm to be deposited deep in the vagina, when the female was fertile. You have pregnancy anxieties, please get education on birth prevention techniques for male and female, so you can enjoy sexuality without this added stress. Good luck