Dog Pregnancy Calculator

Summary

Enter your dog's mating date to get the expected whelping date and week-by-week pregnancy milestones.

How it works

1. Enter the date of your dog's first mating.
2. The calculator adds the standard 63-day canine gestation period to find the due date.
3. Key weekly milestones appear in the timeline below the result.
4. Use the milestone dates to schedule vet checkups and prepare for whelping.

Use cases

• Determine the expected whelping date for a planned breeding.
• Schedule prenatal vet visits at the right weeks of pregnancy.
• Plan when to start nesting preparations and set up the whelping box.
• Track embryo development and fetal growth stages week by week.
• Estimate when to begin nutritional changes during late pregnancy.
• Decide the ideal week for an ultrasound or X-ray to count puppies.

Frequently Asked Questions