Dog Pregnancy Due Date Calculator
Estimate your pregnant dog's due date, gestation timeline, and vital milestones based on ovulation or mating dates.
Input Parameters
Enter details for calculation.
Estimated Due Date
Expert Tip
Gestation in dogs lasts roughly 63 days (range 58-68 days). An X-ray performed after day 50 is the most reliable way to count puppy skeletons so you know when labor is finished.
Calculation Methodology & Details
Formula
Calculates gestation checkpoints using the standard canine pregnancy window of 63 days. Key milestones (ultrasound at ~28 days, bone calcification at ~50 days) scale relative to the ovulation date.
Important Disclaimer
All veterinary dosage guidelines and calculations are for educational purposes only. Always consult a licensed veterinarian before administering any medication or making major changes to your dog's diet.
How to Track Dog Pregnancy: Step-by-Step
Predict whelping schedules using this timeline:
Confirm the breeding date
Log the first day of mating or, ideally, progesterone-confirmed ovulation.
Add the standard gestation days
Typically, dogs whelp 63 days after ovulation. Enter a custom length if your dog is known to breed early or late.
Schedule veterinary scans
Ultrasonography works best at Day 28. Bone skeletons do not calcify enough to show on X-ray until Day 45-50.