Best Dog Pregnancy Calculator

The average dog pregnancy lasts 63 days from ovulation, although it may range between 58 to 68 days. Small breed dogs sometimes deliver slightly earlier, while large breeds may go a few days longer.

A dog pregnancy calculator provides an estimated due date based on the average gestation period of 63 days. Accuracy improves when the exact ovulation date is known. Veterinary ultrasound confirmation is recommended for precise timing.

Early signs may appear around week 3 to week 4. These include mild appetite changes, nipple enlargement, slight weight gain, and behavioral changes such as increased affection or tiredness.

Pregnancy can be confirmed through ultrasound (25–30 days), hormone testing, or abdominal palpation by a veterinarian. X-rays after day 45 help determine litter size.

A dog’s normal temperature is around 101–102.5°F (38.3–39.2°C). About 12–24 hours before labor, her temperature typically drops below 99°F (37.2°C), indicating that whelping is near.

Litter size depends on breed and age. Small breeds may have 1–4 puppies, while large breeds can have 8–12 or more. First-time mothers often have smaller litters.

During pregnancy, dogs require high-quality, nutrient-dense food. From week 5 onward, calorie intake should gradually increase. Puppy-formulated food is often recommended for proper fetal development.

Nesting behavior usually begins in the final week of pregnancy. Dogs may seek quiet spaces, dig bedding, or become restless as labor approaches.

If pregnancy exceeds 68 days from confirmed ovulation, veterinary evaluation is strongly recommended. Prolonged gestation may pose health risks for both the mother and puppies.

Dog labor has three stages: cervical dilation, puppy delivery, and placenta expulsion. The entire process may last 6–12 hours but can extend longer depending on litter size.

Contact a vet if strong contractions continue for more than 30 minutes without a puppy, if more than 2 hours pass between puppies, or if abnormal discharge occurs.

Yes. First-time mothers may experience longer labor or require assistance. Monitoring and veterinary guidance reduce risks significantly.