[header] How to know when a dog is done giving birth [title] Consult your vet to see how many puppies should be in the litter. [step] Usually, the vet will examine the dog around day 50 of pregnancy to see how many puppies it is carrying. This number should tell you how many puppies to expect. 
If the dog hasn't had all of the puppies yet, there are more to come. [substeps] It is extremely important to take your dog to the vet throughout pregnancy.