Okay...we went in for our second puppy shots today. She weighs 2 lbs 8oz at 12 1/2 weeks. She weighed 1.5 pounds two and a 1/2 weeks ago when I got her LOL. They said she is growing well and the 'spurt' is okay. The girl I got her from said 4 pounds full grown, the yorkiepassion chart says 5 pounds full grown, and the vet says more like 8 pounds full grown.
I know there's no guarantee except to wait and watch so we will see. She's resting now from her shots but new pics coming tonight!