Dog Pregnancy Calculator

Dog Pregnancy Calculator

Calculate your dog’s due date and track pregnancy week by week

Quick Breed Examples

Pregnancy Timeline

Due Date
Gestation Period
63 days
Current Week
Week 1

Week-by-Week Development

Week 1-2
Fertilization and early cell division

Understanding Canine Pregnancy

Canine pregnancy typically lasts between 58-68 days, with an average of 63 days from conception. Understanding the gestation period and developmental stages is crucial for proper care and preparation.

Key Gestation Periods by Breed Size:

Small Breeds: 58-63 days (often shorter due to smaller litter sizes)

Medium Breeds: 60-65 days (most common duration)

Large Breeds: 62-67 days (may carry longer with larger litters)

Giant Breeds: 63-68 days (longest gestation periods)

Signs of Pregnancy in Dogs:

  • Week 3-4: Decreased appetite, morning sickness, nipple enlargement
  • Week 5-6: Weight gain, abdominal enlargement, behavioral changes
  • Week 7-8: Visible puppy movement, nesting behavior, milk production
  • Week 9: Drop in body temperature, restlessness, labor signs

Canine Gestation Timeline

Understanding the week-by-week development helps you provide appropriate care throughout your dog’s pregnancy.

58-68 days
Total Gestation
21 days
Embryo Stage
42 days
Fetal Stage
63 days
Average Duration
Weeks 1-3: Early Development
Fertilization occurs, embryos travel to uterus, implantation begins. No visible changes yet.
Weeks 4-5: Rapid Growth
Organ development, fetus size increases dramatically. First ultrasound possible at day 28.
Weeks 6-7: Final Development
Skeleton hardens, fur develops, puppies become viable. Prepare whelping area.
Week 8-9: Preparation for Birth
Puppies position for birth, milk production begins. Monitor for labor signs daily.

Breed-Specific Considerations

Different dog breeds have unique pregnancy characteristics that affect gestation length and care requirements.

Breed Size Average Gestation Typical Litter Size Special Considerations
Small/Toy Breeds 58-63 days 1-4 puppies Higher risk of complications, may require C-section
Medium Breeds 60-65 days 4-8 puppies Most straightforward pregnancies
Large Breeds 62-67 days 6-10 puppies Watch for nutritional demands
Giant Breeds 63-68 days 8-12+ puppies Extended recovery period needed

Veterinary Care Timeline:

Timing Veterinary Action Purpose
Day 25-35 Ultrasound Confirm pregnancy, estimate litter size
Day 45-55 X-ray Accurate puppy count, check positioning
Day 58+ Daily monitoring Watch for labor signs, temperature drops
Day 65+ Veterinary consult If no labor signs, assess need for induction

Frequently Asked Questions

How accurate are dog pregnancy calculators? +

Dog pregnancy calculators provide estimates based on average gestation periods. Accuracy depends on knowing the exact mating date and considering breed-specific variations. For precise timing, consult with your veterinarian who can perform ultrasounds and physical examinations.

Can dogs have false pregnancies? +

Yes, false pregnancies (pseudopregnancy) are common in dogs. They can show many pregnancy signs including weight gain, nesting behavior, and even milk production without actually being pregnant. Veterinary confirmation through ultrasound or blood tests is recommended.

When should I take my pregnant dog to the vet? +

Schedule a veterinary visit 3-4 weeks after mating for pregnancy confirmation. Follow-up visits at 6-7 weeks for monitoring and 1-2 weeks before due date for final assessment. Emergency visits are needed for bleeding, prolonged labor, or signs of distress.

How can I tell if my dog is in labor? +

Labor signs include nesting behavior, restlessness, panting, loss of appetite, and a drop in body temperature (below 100°F). Active labor involves visible contractions and straining. Stage 1 labor can last 6-12 hours before puppies are delivered.

What should I feed my pregnant dog? +

Switch to high-quality puppy food starting week 5-6 of pregnancy. Increase food quantity gradually, reaching 25-50% more than normal by late pregnancy. Provide multiple small meals daily and ensure constant access to fresh water. Consult your vet for specific nutritional recommendations.

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