Dog Pregnancy Calculator
Track your dog's pregnancy from breeding to delivery. Get due date estimates, stage-by-stage development info, and key milestones.
Enter the date of the first successful mating.
About This Calculator
Dog pregnancy (gestation) typically lasts 63 days from breeding, though the normal range is 58-68 days. The pregnancy is divided into three trimesters of roughly 21 days each. During this time, the embryos develop from microscopic cells into fully formed puppies ready for birth.
Understanding the stages of canine pregnancy helps you provide the best care for the mother-to-be. Nutritional needs increase significantly in the second half of pregnancy, and veterinary checkups become more important. Around day 45, an X-ray can confirm the number of puppies, helping you prepare for delivery.
📖 Read our guide: Dog Pregnancy Timeline: Week-by-Week Guide — fetal development, nutrition checkpoints, vet visits, and labor warning signs across the full 63 days.
Frequently Asked Questions
How long is a dog pregnant?
The average dog pregnancy lasts 63 days from breeding, with a normal range of 58-68 days. If your dog hasn't delivered by day 68, contact your veterinarian immediately.
How can I tell if my dog is pregnant?
Signs include: decreased appetite (weeks 3-4), nipple enlargement (week 4), weight gain (week 5+), enlarged abdomen (week 6+), and nesting behavior (week 8+). A vet can confirm via ultrasound (day 25-30) or X-ray (day 45+).
What should I feed a pregnant dog?
Feed a high-quality puppy food from week 5 onwards, as it has higher calories and nutrients. Increase portions gradually — by week 9, she may need 1.5-2x her normal amount. Always provide fresh water and consult your vet for specific dietary needs.