What exactly are you looking for advice about ?
Have you bred any pups before ? Have you done any reading, before getting your GSD bitch pregnant, about the joys and pitfalls of dog pregnancies ?
If I may offer one suggestion it would be, have a backup plan. Discuss with your vet what to do IF it goes downhill. Know the way to your emergency clinic. If this happens in the middle of the night, make sure they are open, in these times some are not staffed or open 24hrs anymore. Maybe you have a mobile vet in your area? Have a crate in your car, and any supplies needed, such as blankets, newspapers and extra water. Things tend to move fast when it's an emergency. After labor starts and no puppies IF her temp goes back up, think about heading for the ER. Have your whelping supplies in order, heat lamp, holding box if needed, aspirator, some breeders I know breeders who always tie off the cord with dental floss, (I never have,) if you have a bleeder let the vet handle it...A good book to read is the Whelping and Rearing of Puppies, by Muriel Lee. good luck