Dog and Cat Gestation and Delivery Estimator
Track your pet's pregnancy. Estimate delivery date and view vital developmental milestones day-by-day. Dogs and cats have an average pregnancy length of 63 days. Input the date of breeding to map out fetal developmental phases and prepare for delivery. CalcTracker provides this free online calculator for instant, precise, and detailed computations without requiring any sign-up or software installation. All calculations run locally in your browser to guarantee complete user privacy and 100% offline accessibility.
Standard Gestation Period
Computes 63 calendar days from the mating or ovulation date, highlighting key physical checkpoints for canine and feline pregnancies.
Gestation Example
- A female dog bred on March 1st will have an estimated due date of May 3rd, with ultrasound check windows starting around March 22nd.
⚠ Breeder Alerts
- Range of gestation is actually 58 to 68 days; prepare veterinary contacts and a whelping box beforehand.
- Do not feed unnecessary supplements (like calcium) without veterinary advice as it can trigger post-delivery eclampsia.
Frequently Asked Questions (FAQ)
Q: When can a vet confirm a pet's pregnancy?
An ultrasound can reliably detect gestational sacs and heartbeats starting from Day 21-25.
Q: Which temperature drop signals labor in dogs?
Rectal temperature usually drops below 37°C (99°F) approximately 12 to 24 hours prior to whelping.