What to do if I told you sterile?

The fact that a man is sterile has nothing to do with his masculinity. And if you and your spouse or future bride want to have children, you have several options. You can adopt as so many children out there that need homes, and then there is always the possibility of becoming foster parents. Just because someone is not the "biological" father of children...does not mean they can't be the child's father or mother.