TTC #1 post transplant

Lindsay
My husband had a heart transplant 9 years ago. He is healthy but has been on these immunosuppressive medications so that there isn't any rejection. Doctor said we should be good to go to start TTC, but I'm nervous that all that time on those medications might have weakened his sperm count. It is really important to us both to have a child of our own. It's something we both want very badly. Anyone have any experience at all with this, with any post transplant???