Did your dad stutter? Mine didn't. Neither parents. Or siblings. A cousin of my Dad's had something similar but our stutters presented very differently. I'm 42, I chose to not have children or find a long term relationship. I think my stutter and surviving cancer got factored in but it's a simple question, do you want to be a father or not? Whatever you decide the rest you figure out. Honestly I think it's strange you'd assume your son would stutter. Good luck.