Do you mean you just have a strong feeling like you want to have kids, or like you want to fulfill the role of a mother? I know there's definitely guys who at some point have a strong urge to have kids, but i'm not sure if it's the same.
To have kids. By "fulfill the role of a mother" do you just mean "be the stay at home parent"? If so, then I don't have a particular preference, I'd be happy to but would be fine working as well.
I can't think of a single male friend (of ones I've talked about this sort of thing with) who feels the same way, in terms of they'd hate to go through life without having kids. Plenty who are happy to have kids, or would like to some day, or whatever, but none in quite the same way.