If i have 12 high risk strains of hpv and have been having sex with husband for 5 years. what are the chances of him having it?

Men rarely have any outward symptoms of a genital HPV infection other than the low-risk genital wart strains. There is no HPV vaccine that provides protection for more than 7 High risk strains. That said, I think there is a good possibility your spouse has acquired at least some of these from you unless your system cleared them years before you were together.