Any dog should finish birthing in 24 hours no longer.
My pitbull had her first pup at 8:20 this morning it is now 10:30 should I worry?
MYbull dog started acting lazy from start of first pup out it took like 6 hours for 6 pups from start to finish but if bitch is labored and no puppies for 2 hours call your vet they will help so much and help you assist which was needed with mine. Good luck!
It took my pit bull an hour in between pups.