thank you for writing to HCM
You boyfriend can undergo further testing and see if his hormones are normal
If they are normal, then a testicular biopsy
can be done and he tissue sample can be frozen for further use.
You can 1st see if the sperm is available from your boyfriend and then you can think of donor later.
you can try all possible method to get sperm from your partner and plan further
wish you all the best
DR Nandita Thakkar