concieving with kidney failure.

me and my husband have been trying to concieve for 3 and a half years now. about 3 years ago we found out that he had 14% kidney function left and that he needs a transplant. he is now on dialysis for almost a year and is at about 3-4% kidney function. were so broken hearted that we haven't been able to conceive yet. were to the point of giving up, he doesn't want to do a sperm count because he still has hope. has any ones husbands had/have this issue? were you able to conceive?