Newborn puppies are completely helpless and rely on their mother for everything.
Newborn puppies should nurse every 2-3 hours for the first week or two. If the mother is not available, you can bottle-feed them with a puppy formula.
Newborn puppies don't need to be bathed often, but you should clean their bottoms and faces regularly to prevent infection.
Newborn puppies can't regulate their own body temperature, so it's important to keep them warm. You can use a heating lamp or a whelping box with a heating pad.
Take your newborn puppies to the veterinarian for a checkup within a few days of birth. They will need to be vaccinated and dewormed.
Start socializing your newborn puppies as soon as possible. Introduce them to different people and animals, and take them to new places.
Puppies usually start weaning from their mother at around 4 weeks old. You can start feeding them puppy food mixed with water or canned puppy food.