How do I calculate my dog's pregnancy due date?

You can use our dog pregnancy calculator by entering the mating date. The tool adds 63 days (average gestation) to give you an estimated due date.

What is the gestation period for dogs?

The average gestation period in dogs is about 63 days from the date of mating.

Can I track pregnancy week by week in dogs?

Yes, our calculator provides a week-by-week breakdown of your dog's pregnancy stages from fertilization to delivery.

Dog Pregnancy Calculator – Accurate Due Date & Week-by-Week Guide

How to Use Our Pregnancy Calculator for Dogs

Our pregnancy dog calculator is simple to use. Follow these easy steps to estimate your dog's due date:

Enter the Mating Date

Select the date when your dog was bred in our dog pregnancy due date calculator. This is the most important information for accurate calculation.

Click Calculate

Press the calculate button to process the information. Our calculator dog pregnancy tool uses the standard 63-day gestation period.

View Results

Get the estimated due date from our pregnancy calculator for dogs and explore our week-by-week guide to track your dog's pregnancy progress.

Dog Pregnancy Calculator Week by Week

Track your dog's pregnancy journey with our detailed dog pregnancy calculator week by week development guide:

Week 1–2

Fertilization occurs
Cell division begins
Embryos travel to uterus

Week 3–4

Embryo implantation
Organ development starts
Possible morning sickness

Week 5–6

Fetal development accelerates
Visible physical changes
Increased appetite

Week 7–8

Nesting behavior begins
Milk production starts
Puppies' fur develops

Week 9

Delivery preparation
Temperature drop signals labor
Whelping begins

Dog Pregnancy Resources

Explore our comprehensive resources to help you through your dog's pregnancy journey:

Dog Pregnancy Symptoms

Changes in appetite
Behavioral changes
Weight gain
Enlarged nipples
Nesting behavior

Nutrition During Pregnancy

High-quality puppy food
Increased calorie intake
Proper supplements
Feeding schedule
Hydration importance

Whelping Preparation

Creating a whelping box
Essential supplies
Emergency contacts
Labor signs
Post-delivery care

Newborn Puppy Care

Temperature regulation
Feeding schedule
Weight monitoring
Health checks
Socialization basics

Frequently Asked Questions

How accurate is the dog pregnancy calculator?

Our pregnancy in dogs calculator provides an estimate based on the average 63-day gestation period for dogs. While this is generally accurate, individual dogs may deliver a few days earlier or later. We recommend consulting with your veterinarian for precise monitoring.

Can I use this calculator if I don't know the exact mating date?

For best results with our dog calculator pregnancy tool, you should know the mating date. If you're unsure, you can estimate based on when you observed mating behavior, but the results will be less accurate. Your vet can perform tests to estimate pregnancy stage if needed.

Do different dog breeds have different gestation periods?

Most dog breeds have similar gestation periods (58-68 days), with an average of 63 days. However, smaller breeds may deliver slightly earlier and larger breeds slightly later. Our pregnancy dog calculator uses the 63-day average for all breeds.

What signs should I look for as my dog's due date approaches?

As delivery nears (which you can track with our dog pregnancy calculator week by week), watch for nesting behavior, decreased appetite, restlessness, and a drop in body temperature (below 100°F). Milk production typically begins 1-2 days before delivery. Contact your vet if you have concerns about the whelping process.

How soon can a vet confirm my dog's pregnancy?

A veterinarian can typically confirm pregnancy through palpation at about 28-30 days, ultrasound at 25+ days, or blood tests that detect relaxin hormone at 21-25 days post-breeding. X-rays are most effective after day 45 for counting puppies. Our pregnancy calculator for dogs works alongside these methods to track progress.