DCWebEditor Irvine, California 10/1/2012 8:39:09 AM @Diane - 13 weeks is not very old at all, your puppy is still a baby and you'll have plenty of time to train him. Give your puppy some time to get acclimated to his new home and new name. It's great to start puppy training to get your dog used to listening and learning, but don't expect your little guy to know what to do right away. With any puppy it takes time. Good luck with your new puppy!