My girl is not quite six months old and looks about the same size. she weighs 3.2 and her estimated adult weight is four and a half pounds. There is a picture of my girl in the Pictures forum under my thread "Look wwhat I got". it is probably on the second or third page by noww. These pups resemble her very much.
http://www.yorkietalk.com/forums/sho...d.php?t=101314
Here is the link