Interesting... Yalee- shes 7months & shes 7.5lbs, HUGE! Her mom is 6.5lbs & her dad (which I own) is TINY but pure muscle, 5-5.5lbs.. so I dont know how she got so big, she has more of her moms body- Tall but not sooo long like a silky terrier, shes actually taller than my silky, but thats bc daddy is tall as well- long legs! At least 4 lbs isnt that bad... a little bit on the small side but a nice size Yorkie!