I don't know much about it (though I do remember it from Reproductive Health 101).
I urge you to get him to a Dr asap! It might not be fun, but they can do some testing, and if needed, can "harvest" his sperm via a needle...
I'm sure he's aware of the problem... talk to him about it. Communication is always good -- try to be sensitive, and let him know you're concerned. This isn't something that's his fault, so don't let him blame himself. It's just something that needs to be dealt with!
Good luck!
I urge you to get him to a Dr asap! It might not be fun, but they can do some testing, and if needed, can "harvest" his sperm via a needle...
I'm sure he's aware of the problem... talk to him about it. Communication is always good -- try to be sensitive, and let him know you're concerned. This isn't something that's his fault, so don't let him blame himself. It's just something that needs to be dealt with!
Good luck!