What if i have 0 spots for wolves?

If you have zero spots your wolf will give birth but the pups will wander off. You should try to have a few spots open for when your wolf gives birth to prevent losing the litter.

1.where will they go?????

2.where will they go if they where bred by a male from another pack?????

They'll basically be deleted from the game, there's no way to get them back. You'll get a game message saying your pups wandered off since there was no space. Same thing will happen if you bred them with your own alphas, or bred your female to someone else's male since you have no space in your pack for the pups.

You'll have to make room by retiring, free ranging, or selling your wolves. You can also buy more den space in Marketplace --> Barter --> Apples.

One small problem........ i don't have apples

Then you'll have to pay attention to what you're doing, like 90% of the other players.