........Is this normal?................ ?

ask a vet!!

No, it's not. He may be very wormy. It's a good idea to take him to the Vet and get him started on de-wormer and first set of shots and follow through as Vet directs so the treatment is effective. I'd advise putting the pup in a lined box with a towel over it when you go in so it is not exposed to other animals at the clinic, or get a kennel cab and cover it.

First, it shouldn't even be away from the mother until 8 weeks old, preferably 12 weeks.

Sounds like worms. I would definately take him to the vet to get dewormed, the physical, and possibly get a start on the vaccines.

Yes the dog needs to go back to the mother for two more weeks. A puppy should never be taken away until its 8 weeks old. Also it sounds like worms.

Good job supporting a BYB of pit bulls.

Probably worms take a stool sample to the vets

Normal for a BYBred, too young puppy that's never been wormed

Why do you have an underage pup?

Probably worms. Take the dog to a VET.

No, you need to talk to your vet. This could be caused from parasites or it could be something worse.

The puppy might be a bit chubby; seems pretty normal to me darling