Congrats on your new puppy! Looking forward to seeing pictures.
Just a little adivise.. If you are wanting a yorkie or any other breed in the future it is good to do lots of research on that breed as well as the Breeder that you are getting from. There are alot of things that can throw up red flags. You said two. 1) she would sale them so YOUNG
2) she sold the rest to a Pet shop
Here on Yorkie talk is some awesome respectable breeders and they can as well help you know what to look for if you want to buy one in your area.
Congrats again on your new Lil Fur Baby