@DererminedOne good news about the FSH levels. Did your DH take anything or did it just happen with no reason?
The question I would be asking now is after being told sertoli only is it possible to end up producing sperm? From memory (I am at work don't have the paper) the max for the normal level was around 18.
@allykat111 I think all clinics are different. We were only told when they came in over the phone because I was calling the urologist all the time hehe. But we did do a followup where they gave us more info. I am not a patient person either.