Any newborn litter needs constant monitoring which usually means someone has to be on 24 hour watch
You need to ensure that the room is kept constantly heated to around 75 degrees (F) as puppies getting chilled can go downhill very quickly. Newborns do not feed constantly but of course you need to make sure they are getting enough - healthy puppies have plump little bellies & will twitch about all the time, even when asleep. You should weigh puppies daily to make sure they are gaining weight, though for the first few days you may not see much of a gain (puppies should of course all be weighed soon after birth so you can monitor their growth).
Jane
PS Questions about breeding/litters etc are permitted on this board but general litter announcements etc must be made on the Litters Planned & Safe Arrivals board (subject to conditions)