Dog Pregnancy Calculator - Find Your Dog's Due DateIf your dog has mated and you want to know when she will give birth, this Dog Pregnancy Calculator is for you. A dog's pregnancy is short, only about 63 days on average. Just select your dog's first mating date in the calculator above and it will instantly show you the expected whelping date, safe delivery range, and how many days are left.I made this tool because when my own dog got pregnant, I was confused about the exact date. This calculator uses the standard veterinary formula of 58 to 68 days from mating, with 63 days as the average, to give you an accurate result.
🐶 Dog Pregnancy Calculator
Find your dog's due date - 100% accurate (58-68 days)
📅 Pregnancy Timeline
Fertilization & early embryo development. No visible changes.
Morning sickness possible. Vet can confirm pregnancy via ultrasound.
Belly starts to swell. Puppies' organs forming. Increase food slightly.
Nesting behavior. Prepare whelping box. Puppies ready to be born!
How Long Are Dogs Pregnant?Dogs are pregnant for about 63 days, but it can range from 58 to 68 days. This is much shorter than humans. The exact length depends on the breed and when the mating happened. Small breeds sometimes deliver a few days earlier, while large breeds can go a few days longer.Our calculator calculates from the first mating date. If your dog mated multiple times, use the first date for the most accurate estimate. The safe whelping window we show (58-68 days) is what vets use.Dog Pregnancy Week by Week - What to ExpectWeek 1-2: You will see no changes. The eggs are fertilized and travel to the uterus. Keep her diet normal.Week 3-4: This is when morning sickness can happen. Your dog may eat less and feel tired. A vet can confirm pregnancy with an ultrasound after day 25. This is a very important time, so avoid stress and heavy exercise.Week 5-6: Now her belly will start to get bigger. The puppies are growing fast and their bones are forming. You should increase her food by 25% and switch to high-quality puppy food. You can also feel the puppies moving if you gently touch her belly.Week 7-9: She will start nesting - looking for a quiet, safe place. This is the time to prepare a whelping box with clean towels in a warm, quiet corner. In the last few days, her temperature will drop below 100°F (37.8°C) - this means labor will start within 24 hours.When to Call the Vet?Call your vet immediately if your dog is pregnant for more than 70 days, has strong contractions for more than 2 hours without a puppy, or has green/black discharge without delivery. Always keep your vet's number ready in the last week.Final Note: This calculator gives you an estimate based on standard gestation. Every dog is different. For 100% confirmation, always visit your vet for a checkup. I hope this tool helps you prepare for the new puppies!