I don't know this little one doesn't look much younger than mine did at 9 weeks old... maybe she is 8 weeks old... but I don't think she is as young as your thinking. You still have to be very careful to make sure she eats well and you keep an eye on her as often as possible though. I would also get her to the vet as soon as possible, and bring a stool sample if you can get one. Since you dont know much about the breeder, you want to make sure she didnt come with any type of parasites and if she did you can handle it quickly. The vet will also be able to give you a better indication of her age and overall health.
As for the ears, to get them to stand up you need to keep them shaved, the extra weight of the hair can pull them down. Also it helps if you massage them often when she is laying next to you. Likely they will go up and down a few times while she is teething. Many people never have to tape them, but some people do end up doing it. You can find websites online that show you how, but I don't think its something you need to do right now.
Good Luck with her.
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 Armani & Chloe |