Just to 2nd what Carmen said! No pre-whelp calcium! Although, If your girl won't stay in a box- if she is nervous or scared, it may be an idea to just put her on a pile of towels and sit beside her (in a warm very draft free room)... My missy uses a basket, but Kuki kept climbing out and sitting on me, so I just sat on the bed with her on towels and whelped them there- with a basket to put the pups in during another birth. And I could also put a table up right beside me and it was the perfect height- for supplies, spare towels for puppies and mommas treats etc. without having them on something on the floor- I'd likely knock them over! 
 It's really just whatever you think your little girl will be more comfy with, and no one knows her better than her mommy!! Have you been able to find someone to give you a hand? If you know your vet well and have a good relationship, ask them; when my vet knows one of my girls is due, they are ready and waiting for my arrival if I phone and say I'm bringing her in- even if for oxytocin or a scan- it's not only a c-section that you may need your vet for remember.     
				__________________   "...She will be yours, faithful and true, to the last beat of her heart; you owe it to her to be worthy of such devotion..."          |