sounds like she is getting near, if the welping box hasnt arrived, I would just remove your other dogs, put loads of towels down with paper on top and get her settled there, she can then rip up the paper and the towels will soak up any mess during labour, have a comfy chair or something for you to be able to sit with her. once the box arrives if she has already had the pups just transfer her and the pups into the box placing some of the towels/bedding you have used so that the scent is there and she should soon settle down, make sure wherever you place her you have her out of drafts. maybe in a corner of the room.

mo