Just give up and I'll take him. Mine is the same age
Edit: Mine barks if I try to get work done without having him on me, he will leap from the floor onto your chest (my little acrobat) and his tail never stops wagging. Your little one would be a breathe of fresh air
On a side note, I would not wait so long with tummy troubles with the little guys we have. Perhaps you can ask the breeder to provide you with a toy or blanket of her mom's so the scent of the old surroundings can comfort your pup?