How Long Between Puppies Whelping. This picture shows two puppies formed inside the uterus. As your dog’s body prepares to give birth, her birth canal relaxes and widens, while her puppies turn around into the correct position for birth.
A whelping box is necessary for all puppy deliveries. In dogs, both mean of entrance into the world are normal. Tie a loose bit around each pups neck when you check them out and weigh them after birth.
Food scale for weighing the puppies at birth and daily.
The puppies have been living in a temperature of 101.5°f (38.5°c) which is pretty warm by human standards. If she is having active and hard contractions for more than 30 minutes, you need to call your vet and see if he wants you to come in. Read up on some facts about the canine heat cycle and whelping pups. Once active labor begins and the first puppy is delivered, you can expect a delivery every 45 to 60 minutes.