
Hi Jazz1,
Can only echo the other replies that you should read, re-read and then read again the Book of the Bitch and any other whelping material you can get hold of. There are lots of links on-line to helpful sites some with video clips (Google is your friend ;) ) Has your girl's breeder had any in-put in this mating? If so then don't be shy to pester the life out of her if you have any concerns at all.
Also let you vet know that whelping is imminent and have his/her telephone number on redial on your phone. If you have any breeders near to you or through friends from dog club who have experience of whelping ask if someone can be on hand should you need them.
Over and above that have all your whelping supplies to hand and don't let your girl out of your sight even to relieve herself in the garden (she may try to whelp in a place inaccessible to you).
It's a very exciting but also stressful experience when the first stages of labour begin because while we all hope everything will be text book, our girls unfortunately don't read the books! Try and stay calm and hopefully the knowledge that you have emergency measures in place should (God forbid) they be needed will help you focus on the miracle it is. When things start if your are in ANY doubt at all, call your vet immediately.
Best wishes, Teri :)