Stomper, as many as you may know, is registered and is 15 pounds at 10 months old. I think he is still growing...
His mother was 5 and father was 7 pounds. Stomper looks like a yorkie, acts like a yorkie, but just a little heavier than most!
I question if Stomper if full breed, but I really don't care. I don't plan to breed him though.
If this helps, he was 3.3 pounds at 8 weeks and just kept growing. Poor guy...I was told he would be 7-8 pounds full grown so I only feed him for that weight. Now I know why he was always hungry!!

Poor thing. Now I feed him for a 15-20 pound dog since he is such a big boy! Got to love him. Here is a recent pic of my cutie pie!