Wait, I misread the theoretical situation. You say the WIFE is bound to die? I don’t know… That’s a tough one.
Actually, even if it was the child that was bound to die, I think it would still probably be moral. After all, if it is in Go’d hands, would it not be in His hands to perform a miracle and let the baby live?
Same thign with the wife, I think, so I would say that you could have intercourse. But I am not sure.