Ok so I'm 12 male and I've been having accidents in bed at night but I don't want my mom to know can some one help?

*Pssst don't tell anyone
Everyone mastrubates including your mom.

Learn how to creep around at night and wash things out on hand. Otherwise you will become a nervous wreck when your mother probably already suspects or even know all about it. Give parents credit for having some sense.

dad does too....knocking up mom

Well if you let her know, she'll clean it. Your only other option is to find some money to buy adult diapers.