Men can have the biological imperative to reproduce just like women can. You should talk to your wife and see what she thinks. 26 is still very young unless you want to have a very large family.
I do wish I could have kids. I hope I'll be able to adopt someday But not for at least five years (I am also 26, by the way).
And you're not too young to chase your dreams, but you should figure out what's more important to you - chasing those dreams, or settling down and having a family. Those two are somewhat mutually exclusive.