I don't think the OP's picked up the new food yet, so it's not a switch from Pedigree to TOTW yet. BUT, it could be from switching from what she was fed before she came to you, to the Pedigree. Do you know what she was eating before she came to you?
Nerves can affect poops as well. So, if she's new to you, she may have had an upset stomach, and is now kind of cleaning herself out, so to speak.
Have you had her to the vet since she came to you?
When our puppies have upset stomachs we add a little plain yogurt to their kibble. The bacteria really helps. But, you have to make sure it's PLAIN, not vanilla or flavored. And, NOT nonfat, either. Nonfat often has additives to make it taste better. So, a low fat or regular would be ok. We just add about a tablespoon to the kibble.
Nerves can affect poops as well. So, if she's new to you, she may have had an upset stomach, and is now kind of cleaning herself out, so to speak.
Have you had her to the vet since she came to you?
When our puppies have upset stomachs we add a little plain yogurt to their kibble. The bacteria really helps. But, you have to make sure it's PLAIN, not vanilla or flavored. And, NOT nonfat, either. Nonfat often has additives to make it taste better. So, a low fat or regular would be ok. We just add about a tablespoon to the kibble.