🐶 Canine Reproduction & Theriogenology 63-Day Clinical Gestation Timeline

Calculate your dam’s estimated whelping due date, ultrasound timing, fetal skeletal mineralization windows, and labor milestones based on the date of mating.

Enter the date of successful breeding or artificial insemination.
Clinical Note: Normal canine gestation spans 63 days from ovulation (or 58–68 days from first breeding tie). If labor fails to commence 24 hours after a documented rectal temperature drop below 99°F (37.2°C), or if active contractions persist for >30 minutes without delivery, contact your emergency veterinarian immediately.
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