Wondering when your pup is due? Track dog pregnancy signs week by week with our Dog Pregnancy Calculator and prepare confidently for the big day.

Dog pregnancy is an exciting journey—but it can also feel confusing, especially if you are unsure about due dates, symptoms, or what is happening inside your dog’s body. This is where our dog pregnancy estimator comes in. 

It helps you calculate a dog’s due date within seconds. Whether you are concerned about your pet or are a breeder, staying one step ahead is important during pregnancy.

Unlike basic whelping calculators that only estimate a due date, our dog due date predictor tool goes a step further. It not only predicts your dog’s expected delivery date, but also gives you week-by-week pregnancy signs and tips, helping you understand exactly what is happening at each stage.

With our whelping data calculator, you can instantly analyze the mating date to estimate your furry friend’s birth date. Wondering how long is dog pregnancy? The dog pregnancy length, also known as the canine gestation period, is usually between 58 and 68 days. However, it lasts for 63 days in most cases.

All you need to do is enter the dog breed, dog size, and mating date, and our dog gestation calculator will instantly provide you with the expected whelping date.

What is a Dog Pregnancy Calculator?

A dog pregnancy calculator is a tool that estimates:

• Expected due date of delivery
• Pregnancy week progression
• Key developmental milestones
• Care guidance for each stage

Dogs are usually pregnant for about 9 weeks, but the exact timing can vary. Our dog due date calculator helps remove guesswork so you can plan ahead with confidence.

Why Use Our Dog Pregnancy Due Date Estimator?

Our Dog Pregnancy Calculator is designed to give dog owners more than just a due date. It provides a complete, easy-to-follow pregnancy overview that helps you stay informed, prepared, and confident throughout your dog’s journey to motherhood.

1. Track Week-by-Week Development

See how puppies grow and develop inside the womb at every stage of pregnancy. From early embryo formation to final growth before birth, you will get a clear understanding of dog pregnancy signs week by week, so you can better support your dog’s changing needs. Here is what the report includes:

• Pregnancy Overview: Pregnancy age, time, current week, current stage, and progress
• Pregnancy Progress: Visual display of week 1 to week 9
• Timeline Visualization: Symbols from the fertilization stage to the whelping prep stage.
• Puppy Growth Chart: Displays weekly gains in the dog’s weight
• Week-by-Week Signs and Tips: Provides week-by-week signs and instructions on what to do
• Whelping Supplies: Whelping box, safety rails, sterile kit, digital thermometer, and emergency information
• Vet Questions: Suggests what to ask your vet on the next visit
• Signs to Watch: Lists signs that may need immediate attention during pregnancy.

Below are a few images from the report our tool has generated.

2. Prepare for Birth in Advance

Plan ahead with confidence by knowing your dog’s expected delivery timeline. This helps you:

• Set up a comfortable whelping area
• Gather essential supplies
• Ensure a safe, stress-free environment for delivery.

3. Recognize Important Changes

With our canine due date calculator, you can easily understand the physical and behavioral changes your dog goes through during pregnancy. From appetite shifts and mood changes to body development, you will know exactly what is normal and when to be concerned and contact a vet.

4. Reduce Stress and Uncertainty

Our gestation calculator for dogs helps you eliminate the guesswork and anxiety that often comes with dog pregnancy. With clear, structured, and reliable information, you can feel more in control and make better care decisions for your pregnant dog.

Note: This tool is equally helpful for experienced breeders and first-time dog owners, reassuring them that everything is on the right track.

How to Use Our Dog Pregnancy Calculator?

Whether you are a tech-savvy individual or have never used a tech tool before, you can easily use our canine pregnancy calculator to estimate your pup’s due date. Here is how to proceed:

1. Choose the dog breed

2. Select your dog size (some are selected automatically)

3. Set the mating date

4. Enter vet appointment date (optional)

5. Click the Calculate button (as shown in the image below)

Now, you will be able to see the estimated dog pregnancy due date, as shown in the image below.

Our dog pregnancy estimator tool lets you add the vet appointment date to your calendar (Google Calendar, Apple Calendar, Microsoft Calendar) to set a reminder.

Moreover, you will see vet questions, a whelping checklist, and things to watch during pregnancy.

6. Click the Generate Full Pregnancy Plan button (as shown in the image below).

7. Here, you can enter your dog’s name, upload her picture, and subscribe to our updates, but they are all optional. Click the Generate Report button to generate a comprehensive pregnancy report.

8. Click the Download Report button and access it from your computer.

How to Know If Your Dog Is Pregnant?

Dogs can’t share anything about their pregnancies and can’t visit vets themselves. Therefore, you should keep an eye out for potential signs that indicate your pup is pregnant. Some common signs of dog pregnancy include the following.

• Weight gain
• More irritable
• Swollen belly
• More easily tired
• More affectionate
• Reduced activity or fatigue
• Morning sickness (vomiting)
• Increased nipple size or pink nipples
• Increased appetite after the early weeks
• Behavioral changes (more clingy or withdrawn)

If you notice any of the above-mentioned symptoms or multiple of them, it is an indication that your canine can be pregnant. You can visit a nearby vet to confirm if the dog is pregnant.

Note: These signs can also indicate other conditions, so veterinary confirmation is important.

Understanding the Dog Pregnancy Timeline | Week by Week

The dog’s pregnancy is divided into different phases. Each phase includes physical changes in the mother and fetal development, as listed below.

Week 1-2: Fertilization Stage

• Mating has occurred
• Fertilized eggs travel to the uterus
• No visible physical signs yet

Your dog will behave completely normal at this stage.

Week 3: Early Development Begins

• Embryos implant in the uterus
• Mild hormonal changes start
• Some dogs may show slight appetite changes

Week 4: Pregnancy Becomes Detectable

• A veterinarian can confirm pregnancy via ultrasound
• Nipples may become slightly pink or enlarged
• Morning sickness may appear in some dogs

Week 5: Rapid Puppy Growth

• Major development of organs begins
• The dog starts gaining weight
• Appetite usually increases

This is when pregnancy becomes visually noticeable.

Week 6: Belly Starts Expanding

• Abdomen enlarges significantly
• Puppies develop fur and skeletal structure
• The dog may become more affectionate or tired

Week 7: Nesting Instinct Begins

• The dog starts looking for a safe place to give birth
• Movement of puppies may be visible
• Appetite may fluctuate again

Week 8: Final Preparations

• Puppies are fully formed
• Mother becomes restless and protective
• Milk production may begin

Week 9: Birth Week

• Signs of labor begin:
  • Loss of appetite
  • Restlessness
  • Nesting behavior
• Delivery usually happens within a few days

If you are well familiar with how a dog behaves throughout the pregnancy period, you can make sure that your pup is heading toward the due date safely.

How to Confirm a Dog Pregnancy?

While early signs can give you a hint, the only way to be sure your dog is pregnant is through proper veterinary confirmation. These methods not only verify pregnancy but also help monitor your dog’s health and the development of the puppies.

1. Ultrasound (Day 25-30)

This is one of the earliest and most reliable ways to confirm pregnancy. A veterinarian can use ultrasound to detect developing embryos and even observe their heartbeats, giving you reassurance that the pregnancy is progressing normally.

2. Hormone Test

A blood test can measure specific pregnancy-related hormones, such as relaxin, which is only present in pregnant dogs. This method is especially useful when physical signs are still unclear.

3. X-Ray (After Day 45)

In the later stages of pregnancy, an X-ray can clearly show the puppies’ skeletons. This helps determine the exact number of puppies and allows better preparation for delivery.

How to Care for Your Pregnant Dog?

Once you know your pup is pregnant, keep a close eye on her activities and take extra care to ensure a safe, healthy birth for her puppies.

Nutrition

• Feed a high-quality, well-balanced diet rich in protein
• Gradually switch to vet-recommended puppy food (higher nutrients)
• Increase portion sizes slightly as pregnancy progresses
• Offer smaller, more frequent meals to support digestion
• Include essential vitamins and minerals (only if vet-approved)
• Avoid raw or unsafe foods that may carry bacteria

Hydration

• Always provide fresh, clean drinking water throughout the day
• Keep water bowls in multiple easy-to-reach locations
• Monitor water intake—pregnant dogs often drink more
• Add an extra bowl near the resting or sleeping area
• Never allow dehydration, as it can impact both the mother and the puppies

Exercise

• Maintain light daily walks to keep your dog active
• Avoid strenuous activities like jumping or running
• Reduce exercise intensity as pregnancy advances
• Gentle movement helps maintain a healthy weight and circulation
• Keep exercise short, calm, and consistent

Comfort

• Provide a quiet, stress-free living environment
• Set up a soft, clean, and warm resting area
• Prepare a whelping box before the due date
• Keep the space away from noise and heavy activity
• Maintain a comfortable room temperature
• Spend quality time to keep your dog calm and reassured

Warning Signs to Watch During Pregnancy

• Excessive vomiting
• Refusal to eat for long periods
• Vaginal discharge (unusual color or smell)
• Extreme weakness or collapse
• No movement in late pregnancy

If you notice any of the above-mentioned signs, contact a veterinarian immediately.

Get Ready to Welcome Puppies!

Knowing about your pup’s pregnancy is important. Don’t leave it to guesswork. Stay informed with our Dog Pregnancy Calculator and support your canine throughout this special phase.

Try now—It’s easy & FREE.

Early signs at home are subtle, so veterinary testing is the most reliable way to confirm.