[maggiesmom_2007]

Okay let's see if I can simplify this. If you have a 5 lb female and you use a male that is say 4 and a half pounds there is no guarantee the offsping will be in that size range. For instance say you breed the 5lb female to the 4 1/2 lb male three separate times resulting in 3 different litters.

Litter 1 has 3 pups and as they are growing they all weigh different amounts. as adults these pups weighed from 2lbs to 3 1/2 lbs

Litter 2 has 4 pups 2 are small and 2 are bigger. as adults the weight range from 2lbs to 6lbs

Litter 3 has 1 pup and this one has surpassed the weights of all the pups from the 2 previous litters at 4 weeks.

Now remember all these pups are from the same 2 parents.
The previous generations of the parents are various weights and sizes so that is a factor in the adult weights of the pups.
As a breeder I will not guarantee the pups size as an adult. But I can get a rough estimate on what the adult size may be by looking at various features of the pups. So far I have been right on the money with their sizes. The features I am referring to are nose, paws and ears. The ears are still tricky because you can have tiny ears or you can have big ears that can throw you off . Right now the 4 week girl I have has big feet and her nose isn't tiny. When I say nose I mean just the nose and not the muzzle. Just to clarify what I meant by Normal I meant 4 to 6 lbs. I am not knocking any Yorkie that doesn't fit in what I call normal I show my Yorkies also and this is the range I like for showing.