yay for getting a new puppy
HOW much bigger is she than the other pups? The breeder should be able to give you her weight now and how big she was when she was born.
Her coat should now be black and tan- have you seen the parents? If they are both silver and tan chances are she will turn into that as well0 but my Layla is 4 and is still black and tan
She will probably be somewhere between 4 and 6 pounds, but if either of her grandparents were bigger- she could be too. weight is a tricky thing- you can usually double their 12 week weight to get an adult weight.