The first week decides how confident your puppy feels for months afterwards. Keep the world small and predictable: one quiet room, one feeding routine, one sleeping spot.
A small-breed puppy sleeps eighteen to twenty hours a day. Broken rest is the most common cause of nipping and over-excitement in week one, so protect naps as carefully as you protect toilet trips.
Take your puppy out after every nap, meal and play session. Carry them there for the first few days so accidents on the way do not become a habit.
Feed the food they arrived on for at least ten days. Any change should be a gradual blend over a week to avoid an upset stomach on top of an already big change.
Expect some crying at night. A crate beside your bed, a warm blanket that smells of their litter and a consistent response settles most puppies within three or four nights.
This guide is general information for planning purposes and does not replace advice from your own licensed veterinarian or a qualified trainer who knows your dog.