Jess...

Do you know about Lance Armstrong's story?

He was diagnosed with cancer in 1996, underwent surgery and chemo that basically wiped out his sperm totally. Ended up having 3 kids via IVF... and in 2008 his GF fell pregnant naturally...

If I am not mistaken it is possible for the sperm to come back if that makes any sense!
sorry didnt see ur reply there!

i know its an amazing story...gives me hope, i guess i will just have to push him into to getting the "dreaded" check done! its deffinately worth giving it a go!