
I have never managed to keep them in the house full time past 4 1/2 weeks, mine need much more space by then to play and to move further from their beds to toilet.
My pups will start becoming very fractious in their pen in the kitchen (where they have been from the time their eye open) until I allow them out side in the kennel and secure dog run. I put a board across the run entrance so the Mum and other adults are free to go in and out to them.
From then on they come in and out the house for their meals and for individual attention, sitting watching TV, playing with me etc. I do not let the pups in the living room unless individually supervised.
By 8 weeks I remove the board and pups have the same area as the adult dogs and come in and out of the kitchen door which is open most of the time.
Friends of mine with the same breed managed to breed their first litter of four entirely in the house, but this year with the second the pups would not stay in the puppy pen and wanted to spend all their time outdoors,a nd they didn't have a kennel or shelter for them and they would lie down sleeping on the concrete or in the planters rather than come inside for more than a few minutes, even though it was February. In the end he built them a small Cabin from decking timber.
It isn't like with one puppy who will sleep then go out then coem in etc. With a litter some are playing soem are slepping and it is next to impossible to let one in one out etc as they need.
I have found that by 8 weeks as long as my backdor is open the pups are house clean with pooing and almost so with wees. They are not of course housetrained as such but choose to go outside, as the kitchen has been theri denning area..