He is still pretty young, confused and missing his family. It does take time to potty train, they need to feel safe with you and their surroundings. There is a spray that the pet store sells that is made for potty training, you can spray it on the pad and in the yard. http://www.petco.com/product/115631...eCat=LN_DogSupplies_HousetrainingIncontinence
This site has some great tips too: http://www.aspca.org/pet-care/virtual-pet-behaviorist/dog-behavior/house-training-your-puppy
This site has some great tips too: http://www.aspca.org/pet-care/virtual-pet-behaviorist/dog-behavior/house-training-your-puppy