I have a staffie who is pregnant, she only has 3 days to go, can you tell if they have their puppies on time or early or late ?

The best thing you can do is to get in touch with your breeder and ask her if her bitches were early or late giving bith.

all bitches are diffrent, even the same bitch can go at diffrent time.  ie. late on the first litter and early on the second litter
just keep your eye on her from now on in and dont leave her for long on her own