6 week old puppy diarrhea and vomiting?

The vet will be open tomorrow.. I believe puppies shouldn't be taken away from their mothers that early.. I think its 8-12 weeks actually.. Call the vet first thing in the morning.. & you obviously bought the dog (unknowingly) from a BAD breeder.. The dog should have been de-wormed and had shots before s/he was rehomed.. Good luck with everything.. I hope it is nothing serious