I agree with LoveMyBostons, if you love your puppy you will surrender him to a no kill shelter where he can get some help, and do it very soon. If hes not eating or drinking, at that age, he won't last more than a day or two. Please help him before its too late.
He needs medical treatment. If you can't provide that for him, please surrender him to your local animal shelter. He can't survive long without water.