Is it OK to get a pup from a private home?

[Ormirian]

I mean a house where there was an accidental romantic tryst in the back garden rather than a deliberately orchestrated litter? I don't want to support dodgy breeders, and don't particularly care for pedigree dogs anyway. DH still wants a pup rather than an older dog which is making rescue more problematic. Dh has learnt that one of his pupils has a litter of unintended pups at their home.

Yes or no ethically speaking?

PS sorry to bang on about this. I know I am being a bore but I want to get it right and make everyone happy. Including dog. And cats.

They re-home nationwide :) - i know they have re-homed in Scotland!! They have a general "no under 5's" rule - but each case is given individual consideration :) - hope that is helpful :)
They also have several volunteers in the Somerset area - so homechecking wouldn't be a problem.