he sounds like he has his head around it and has a very matuer approach to the whole thing. I have a friend who looked into sperm donoring a few years back and at the time he was knocked back due to medication he had been taking for an injury - and then by the time that was out of his system he was with someone and had changed his mind. He was only young too - about 24 at the time - and similarly just wanted to offer his service because he could. Figured a lot of it was just going to waste in the meantime (IYKWIM??)

Really hope this could be it for you, Sue...