Animal Pregnancy Calculators – Complete Gestation Guide for Dogs, Cats, Cows, Horses, Sheep, Goats & Pigs

Welcome to Calculadora-Gestacional.net Animal Pregnancy Tools. This page provides accurate and easy-to-use pregnancy calculators for multiple animals including dogs, cats, cows, horses, goats, sheep, and pigs. Whether you are a pet owner, breeder, or farmer, our free gestation calculators help you estimate due dates and track pregnancy week by week.

Each animal has a unique gestation period. Understanding the correct pregnancy timeline helps ensure proper nutrition, veterinary care, and safe delivery preparation.

🐶 Dog Pregnancy (Canine Gestation)

The average dog pregnancy lasts 58 to 68 days, with most dogs delivering around day 63 after mating. Smaller breeds may deliver slightly earlier, while larger breeds sometimes go a few days longer.

• Average Gestation: 63 days
• Heat cycle timing is important
• Ultrasound confirmation recommended at 25–30 days
• Temperature drop signals labor within 24 hours

🐱 Cat Pregnancy (Feline Gestation)

Cat pregnancy typically lasts between 63 to 65 days. Queens (female cats) may show nipple enlargement and behavioral changes by week 3.

• Average Gestation: 63–65 days
• Weight gain noticeable after week 4
• Nesting behavior begins near week 8

🐮 Cow Pregnancy (Bovine Gestation)

Cow pregnancy is significantly longer and lasts approximately 283 days. Proper monitoring is essential in dairy and beef farming to optimize herd management.

• Average Gestation: 280–285 days
• Pregnancy diagnosis via rectal palpation or ultrasound
• Dry period begins 60 days before calving

🐴 Horse Pregnancy (Equine Gestation)

Horse pregnancy lasts around 340 days but may vary from 320 to 360 days. Mares require careful nutritional planning throughout gestation.

• Average Gestation: 335–345 days
• Udder development in final month
• Foaling monitoring recommended

🐑 Sheep Pregnancy (Ovine Gestation)

Sheep pregnancy usually lasts about 147 days. Ewes often carry twins or triplets, making monitoring essential.

• Average Gestation: 145–150 days
• Scanning at 45–90 days
• Lambing preparation in final weeks

🐐 Goat Pregnancy (Caprine Gestation)

Goat pregnancy lasts around 150 days. Nutrition management is critical to prevent pregnancy toxemia.

• Average Gestation: 145–155 days
• Udder filling 2–4 weeks before kidding
• Multiple births common

🐷 Pig Pregnancy (Swine Gestation)

Pig gestation is commonly remembered as "3 months, 3 weeks, and 3 days" (114 days). Accurate breeding records improve farrowing success.

• Average Gestation: 114 days
• Nesting behavior before farrowing
• Litter size varies by breed

Why Use Our Animal Pregnancy Calculators?

• ✔ 100% Free & Easy to Use
• ✔ Accurate Gestation Estimates
• ✔ Week-by-Week Tracking
• ✔ Suitable for Farmers & Pet Owners
• ✔ No Registration Required

Frequently Asked Questions (FAQ)

How accurate are animal pregnancy calculators?

Pregnancy calculators provide estimated due dates based on average gestation periods. For medical accuracy, always consult a veterinarian.

Can gestation vary by breed?

Yes. While average gestation periods are standard, breed size and health conditions may slightly affect delivery timing.

When should I call a veterinarian?

If labor does not begin within the expected window, or if the animal shows distress, abnormal discharge, or prolonged contractions.

Do all animals have the same pregnancy duration?

No. Each species has a unique gestation length ranging from about 63 days (dogs and cats) to 340 days (horses).