would a pro hormone work for me?

So I’ve got some questions for you in my situation might be a little different.
I would like to have children one day and I’m currently 26 years old. So I want to keep my fertility levels up.
I have not used anything yet but I’m curious to get a boost because I’m really into bodybuilding and weight training
I’m wondering if a prohormone would be a better option for me than steroids, or are they just as bad for fertility?.