There are no fixed days for production of milk in dogs. Usually, milk production in dogs is started at advance stage of pregnancy but in some dogs this can be delayed and started few hours after the delivery of puppies. In some dogs, it can be 2 or 3 days before.
If your dog is pregnant and her milk has started to produce then she can deliver puppies within few days. Don't count delivery from the day of milk production. Count number of days of pregnancy that can be an average of 63 days. You can also get help from your vet.
If your dog is pregnant and her milk has started to produce then she can deliver puppies within few days. Don't count delivery from the day of milk production. Count number of days of pregnancy that can be an average of 63 days. You can also get help from your vet.