you must be raising some right dull pups ? 12 weeks still suckling ? why would you want the bitch getting hammer for that long ?
i worm the bitch from 7 week with panacure until a few days after birth then the pups every 2 week by 3and half week there already on mince goats milk and bits and bobs plus arden grange puppy kibble
sociaised with kids my dog pup seems sound ?