The majority of Christians I have met say you go to hell for not believing in God. Sperm are not aware enough to believe or know anything. What they do is probably all instinct. It wouldn't be fair to give them a soul before they have a chance to believe. Now, obviously, there is no way for every sperm cell to get a chance to form a brain, and become a person, and gain awareness. So it wouldn't be fair to give them a soul before they actually turned into something...
But hey, who ever said God was fair? So maybe. Ha ha.
But hey, who ever said God was fair? So maybe. Ha ha.