Ttc again with type 1 diabetic husband

Km4 • 34, married, 2 kiddos, and our 3rd BOY due 1/13/20 💙💙💙

So we’ve been ttc off and on for 3-4 years now. We have two kids that were conceived before the diabetes diagnosis. Husband has been diagnosed for about 5 years now. We’ve always taken the “if it doesn’t happen we’re ok with 2” approach. But I’m now 34 and realize I do REALLY want another baby desperately. We are going to finally seek help with a fertility specialist. I’m scared of hearing that we have no chance to conceive. I’m still holding out hope we’ll conceive naturally. Anyone have successfully conceived or know of couples who have conceived with the dad being a type 1 diabetic?