I figure based on his 12 week weight that Bo will be about 9 pounds...we'll see. I'm glad he's sturdy and a good eater. I tripped over him this morning and almost stepped on his neck!! He let out a little yelp. My household is VERY active and we'd be paranoid having a tiny one (although they are precious!!) underfoot. At this point in our lives, a bigger Yorkie fits our family better.