How long are dogs pregnant?
Dog gestation typically lasts about 63 days from ovulation, though healthy pregnancies can be a few days shorter or longer. Use this calculator as a planning guide and confirm dates with your veterinarian.
Dog Pregnancy Calculator
Estimate your dog's gestation timeline using the mating date, then plan milestones and vet visits with WoofSheet.
Estimated timeline
Select a mating date to estimate the due date and delivery window.
Track important health events and daily notes in WoofSheet →Planning for life after whelping? Track puppy milestones with the Puppy Growth Calculator and convert ages anytime using the Dog Age Calculator.
How to calculate a due date
Enter the last mating or insemination date and add roughly 63 days. This tool also shows an earlier (58 days) and later window (68 days) so you can plan for puppies that arrive a little sooner or later.
What affects gestation length?
Ovulation timing, litter size, breed, age, and health history can all influence when labor starts. Work closely with your vet to track hormone levels or ultrasounds—especially if whelping doesn't begin by day 68.
- Exact ovulation vs. mating date
- Size of the litter
- Health and age of the dam
- Breed-specific tendencies
- Medical interventions or complications
Preparing for puppies
Gather whelping supplies (clean towels, thermometer, scale), set up a quiet nest, and plan for 24/7 monitoring during the final week. Log feeding, temperature drops, and nesting behavior so you're ready when labor starts.
Why tracking every detail matters
WoofSheet lets you record temperature readings, prenatal appointments, appetite changes, and puppy milestones in one shared board. Link this calculator with the Puppy Growth Calculator and the Dog Age Calculator to stay organized from pregnancy through every life stage.
Dog pregnancy timeline
Use this overview to prepare supplies, vet visits, and notes at each stage.
- Week 1–3Fertilized eggs travel to the uterus; monitor appetite and mild changes.
- Week 4–6Visible changes begin; schedule ultrasounds and adjust nutrition with your vet.
- Week 7–9Nest building and temperature tracking; prepare whelping supplies and emergency contacts.
Dog pregnancy calculator FAQ
How long are dogs pregnant?
Most dogs carry puppies for about 63 days, though 58-68 days is still considered a normal window.
How accurate is a dog pregnancy calculator?
It provides an estimate based on average gestation. Confirm due dates with your veterinarian using progesterone tests or ultrasounds.
Can dogs give birth earlier or later than 63 days?
Yes. Puppies can arrive a few days early or late. Contact your vet if labor hasn't started by day 68 or if you notice distress.
What if I don't know the exact mating date?
Estimate using the best information you have, then work with your vet to narrow it down with hormone tests or imaging.
How should I prepare for whelping?
Set up a calm whelping area, gather supplies, monitor temperature drops, and keep your vet's emergency number handy.
Plan pregnancy, whelping, and puppy care inside WoofSheet
Keep prenatal notes, temperature logs, medication reminders, and puppy milestones in one collaborative workspace so breeders, family members, and vets stay aligned.
- Record mating dates, progesterone tests, and vet appointments.
- Track temperature drops, nesting behavior, and labor signs day by day.
- Log birth weights, feeding schedules, and growth milestones for each puppy.
- Share updates instantly with co-owners, sitters, or veterinary teams.
This calculator is educational and cannot replace veterinary guidance. Contact your veterinarian for prenatal planning, emergency questions, or if labor begins outside the typical 58-68 day window.
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