She started having contractions at midnight and had her first pup at 12:25. She had her 8th pup at 11:00am. All look strong and healthy so far. She must be exhausted but doing a great job. Xray was inconclusive but best guess was 10 so she may not be done yet. How much time between pups is too long? How much time total from start to finish is too much? I am in contact with my vet. We almost took her in for petosin at 9:30 but then she started having contractions again and had another pup so he said to hold off. Just worried.