Sometimes I read this threads and get very upset
..............First of, you know NO puppy wether is a yorkie or pitbull is going to be potty trained at 12 weeks......................Enjoy your puppy because you "sound" very mad
........... I dont want to judge you but you sound aggressive
.................Take a few deep breaths and "learn" what is best for your yorkie. I had 3 baby yorkies at one time and they had accidents but I had alot of patience...........When their new mommys came to get them I made sure I told them that they were NOT fully potty trained but if they were persistent and patienced with them they would be soon.................Dont you know he has a small bladder??