I would also like to start off by saying congratulations on your new pup.
How old is she? as Rhetts Mama said there is no such thing as a miniature yorkie, they are all classed as a toy breed.
You breeder will not be able to tell how big she will be fully grown.
If she does end up being around the 4lb mark you will have to be careful, make sure they dont play too rough.
Also is your boy neutered and are you planning on getting her spayed?
If both of the dogs are still 'intact' you need to get them fixed, it could be very dangerous if a 4lb female gets pregnant by a 10lb male.
__________________  Rachael & Poppy |