It is simply horrible that someone would breed a dog that small. Obviously they have no consideration for the well being of the mother is she is nothing more that a "Golden Goose" for that GREEDER.
They cannot predict the actual size of the animal.
and it just "irks" me when someone says "teacup Yorkie purebreed"

THERE'S NO SUCH THING!
Okay, sorry...rant over.