I would build a network of CF friends. I think men need to feel like "one of the guys." Being that having children is so common, this could spark feelings of being an outsider in him. My husband and I joined NOKIDDING!. Obviously you're more important to your husband then his thought about kids. You know my husband is younger and I worry too. However, he has told me he is getting a vasectomy. Maybe discuss this with him, too.