My puppies are raised in my home, like all of the dogs here. We do not have a kennel. They are an integral part of my household (actually, they are the focal point). Bostons are always born by c-section, and the Pugs more often have a natural birth, though occasionally a c-section is needed.
For the first 3-4 weeks, the puppies are in my bedroom. The whelping box is next to my bed. At this age, they need warmth and calm and constant supervision. I do lots of handling and stimulation before they even open their eyes. Nails get trimmed weekly.
Around 3-4 weeks, the puppies move downstairs out of my bedroom and into the living room. We have an open concept house so this means they are in the middle of everything. They get used to the normal things that happen in a house (vacuum, coffee grinder, people in and out, etc).
They start to go on little adventures outside, off leash, where they learn to stick close to people, and get used to cold/hot weather (depending on the season).
Housebreaking begins early; the puppies are trained to go to the bathroom in a small area of the pen. This is then transferred to an even smaller area, until about 7 weeks when they start going outside to eliminate consistently.
The puppies have an open crate in their enclosure starting at 4 weeks. They slowly get used to going in the crate and eventually I start to close it for short periods of time. This makes crate training easy.
By about 7 weeks, the puppies are having the run of the house when we are home, integrated with all the adult dogs, and sleeping by the fireplace.
My goal is to set them up for success when they leave here; the more I can expose them to, the less stress they will have!