You can take a blanket and let his litter mates lay on it and play with it for awhile so their scent is on it. I would also recommend letting your pup rest as much as you can cause your baby will be tired and scared. You can also put a stuffed animal in his crate. I know it seems harsh putting them in a crate but actually he will learn to feel safe in it. It's like their own little space and comfort zone. Oh and CONGRADS ON THE NEW BABY..