Dog Pregnancy Calculator

Expecting puppies? Calculate the due date and track pregnancy milestones.

Date of Mating / Ovulation

*If exact ovulation date is unknown, use the first mating date.

Select a date

Preparing for Whelping

A dog's pregnancy flies by relatively quickly. Here is what to focus on:

Nutrition: Switch to a high-quality puppy food during the last few weeks of pregnancy to support lactation.
Nesting Box: Introduce the whelping box about a week before the due date so she gets comfortable with it.
Temperature Monitoring: Start taking her temperature twice a day starting Day 58. A drop below 100°F usually means labor will start within 24 hours.