Use this simple Dog Pregnancy Calculator to calculate the due date of your pregnant bitch. Enter the Date Dog was First Bred and click calculate. You will see the estimated date that your dog should whelp.

Dogs have an average gestation period of 64 days. The gestation period of dogs is normally 63 – 65 days counting from the first day of mating.

Keep a calendar marked on the days your dog mated. Use our online gestation calculator above as well as the calendar below to determine roughly how far along your dog’s pregnancy is. These can help you along while your dog is pregnant if you are unsure of how to do it yourself.

The dog pregnancy calculator can be used for the following breeds of dog:

Shih Tzu Harrier Hound Tenterfield Terrier King Charles Spaniel Labrador Retriever
Tibetan Spaniel Poodle Miniature Australian Terrier West Highland White Terrier Chesapeake Bay Retriever
Dachshund (Wire Haired) Saluki Bichon Frise Cairn Terrier American Staffordshire Bull Terrier
Greyhound Soft Coated Wheaten Terrier Finnish Spitz Boxer Australian Cattle Dog
Lakeland Terrier Basset Fauve de Bretagne Alaskan Malamute Schnauzer Miniature Bearded Collie
Collie (Smooth) Kerry Blue Terrier Lhaso Apso Bullmastiff Sussex Spaniel
Bulldog Briard Belgian Shepherd Dog Malinois Skye Terrier Welsh Terrier
Rhodesian Ridgeback Dachshund (Miniature Wire Haired) Foxhound Cesky Terrier Dobermann
Hungarian Wire-Haired Vizsla Welsh Corgi (Cardigan) Clumber Spaniel Belgian Shepherd Dog Tervueren Newfoundland
Finnish Lapphund Poodle Standard Bracco Italiano Fox Terrier Wire Coat Pointer
Bernese Mountain Dog Bouvier des Flandres Irish Terrier Weimaraner Chinese Crested
Irish Setter Bull Terrier Chow Chow (Smooth) Affenpinscher Flat-Coated Retriever
Manchester Terrier Belgian Shepherd Dog Groenendael Curly-Coated Retriever Schipperke Dachshund (Miniature Smooth Haired)
Boston Terrier Yorkshire Terrier Belgian Shepherd Dog Laekenois Airedale Terrier Welsh Springer Spaniel
Hungarian Vizsla Bull Terrier Miniature German Short-Haired Pointer Cavalier King Charles Spaniel Dandie Dinmont Terrier
Bloodhound French Bulldog Welsh Corgi (Pembroke) Australian Kelpie Japanese Chin
German Wire-Haired Pointer Schnauzer Standard Dogue de Bordeaux Papillon Poodle Toy
Rottweiler Keeshond Pyrenean Mountain Dog Chihuahua (Smooth Coat) Mastiff
Norwich Terrier Afghan Hound Portuguese Water Dog Border Collie Maltese
Brittany English Toy Terrier (Black & Tan) Shar Pei Dachshund (Miniature Long Haired) Old English Sheepdog
Parson Jack Russell Terrier Lowchen German Shepherd Dog Basset Hound Schnauzer Giant
Maremma Sheepdog Golden Retriever Siberian Husky Australian Silky Terrier Pomeranian
Dachshund (Smooth Haired) Beagle Swedish Vallhund Scottish Terrier German Spitz Klein
English Setter Whippet Tibetan Terrier Borzoi Australian Shepherd Dog
Irish Water Spaniel Japanese Akita Border Terrier Pharaoh Hound Deerhound
Irish Wolfhound Samoyed Basenji Field Spaniel Fox Terrier Smooth Coat
Japanese Spitz Ibizan Hound Dalmatian Nova Scotia Duck Tolling Retriever Sloughi
Collie (Rough) Great Dane St Bernard Shetland Sheepdog English Springer Spaniel
Norfolk Terrier Pug Leonberger Anatolian Shepherd Dog Gordon Setter
Bedlington Terrier Tibetan Mastiff Italian Greyhound    

Dog Pregnancy Calendar (Week by Week)

dog pregnancy calendar and calculator

Week 1 – This is the end of your dog’s heat cycle and when mating begins. The sperm will take a few days to fertilize the eggs.

Week 2 – The fertilized eggs will travel to the uterus and implant. This is when you may notice emotional changes in your dog’s behavior.

Week 3 – The eggs begin to grow and develop. Your dog’s nipples may begin to change and swell, and the mood swings and needy behavior will increase.

Week 4 – Ultrasounds may determine whether your dog is pregnant, and how far along she is. This is usually determined around the 28th day of pregnancy. Your dog may become more hungry, so feeding her a few more times a day is recommended. The developing puppies will start to grow facial structure and spinal cords.

Week 5 – This is when your dog’s stomach will start to swell. The pup’s sex organs, legs and paws will start to develop and grow.

Week 6 – Your dog may show signs of morning sickness and fluids may secrete from the vulva. Your dog may show signs of discomfort and restlessness. The puppies’ pigments develop and eyeballs and eyelids will have formed by this time.

Week 7 – Your dog will start producing milk. She will start to drag items around the house to form a whelping box. This is an excellent time for you to begin preparing for puppies. The puppies are almost fully developed by this time.

Week 8/9 – Your dog will appear uncomfortable and irritable. She will likely start nesting in her whelping box. This is normal behavior. The puppies are now fully developed and will be positioned for birth. Towards the end of week 8, start taking your dog’s temperature to tell when labor may begin. Once her temperature has dropped to 97 degrees, it’s time for puppies!