
As the others ahve said if nails are short, then the bitch will start weaning the pups and not allow them to feed whenever they want. they will come to no harm at all as long as she can get away from them whenever she wants and come and go to them as and when it wuits her. this way they will get less and less reliant on her and will be gradua;;y completely weaned.
My bitches have seemed wuite mean to their pups at 4 to 5 weeks, and once they understand the milk bar is open only when she says they start to spend more time with the pups again by 6 weeks,a nd then it is really great watching her teach them self control and discipline, how to play. Being rough with pushy ones and gentle with less brave ones.
Follow the bitch's lead, if she has been a good Mum then trust her.