When your pregnant dog starts panting more than usual, it can raise concern, especially if you’re not sure whether it’s normal or something more serious. Panting is one of the ways dogs regulate their body temperature, but in pregnancy, it can be a sign of both normal physiological changes and medical issues that require attention.
We outline the common causes of dog panting during pregnancy, what signs to watch for, what you can do at home, and when to call the vet.
Why Is My Dog Panting and Pregnant — What It Means
Panting in pregnant dogs can be a normal part of hormonal and physiological changes, or it may indicate discomfort, overheating, anxiety, or impending labor. Understanding the context of your dog’s panting helps determine whether it’s a natural part of the pregnancy or a warning sign.

Common Reasons for Panting in Pregnant Dogs
Hormonal and Physical Changes
Pregnancy causes surges in progesterone and other hormones that can affect a dog’s respiratory rate. As her body temperature fluctuates and metabolism increases, mild panting becomes common.
Also, as the puppies grow, pressure on internal organs like the diaphragm and lungs may make it harder to breathe, causing shortness of breath and panting even at rest.
Discomfort or Restlessness
As the dog gets closer to delivery, she may become restless, shift positions frequently, and pant from physical discomfort.
Muscle strain, mild contractions, or puppies moving inside her belly can lead to panting episodes.
This type of panting is generally intermittent and accompanied by nesting behavior like digging or pacing.
Overheating (Hyperthermia)
Pregnant dogs are more sensitive to temperature changes. Since panting is their primary cooling method, a warm day or lack of ventilation can cause heavy panting.
Make sure your dog has access to cool, shaded areas and plenty of fresh water.
Persistent panting in a hot environment can be a sign of heat stress and should be treated promptly.
Anxiety or Stress
Some dogs develop anxiety during pregnancy due to hormonal shifts or environmental changes. This can lead to pacing, clinginess, and panting.
New sounds, separation from owners, or other pets can intensify this stress.
Providing a quiet, safe, and calm nesting area helps reduce these behaviors.
Read more: Dog Panting and Shaking (Fear or something deeper?)
Labor Is Starting
Panting is one of the first signs that labor may begin soon. This usually happens within the last 24 hours before giving birth.
It may be accompanied by:
Nesting behavior
Refusing food
Whining or pacing
Shivering
Keep an eye on the timing of panting relative to her due date and other signs of labor.
Pain or Medical Issues
If panting is excessive, unrelenting, or paired with other symptoms like vomiting, diarrhea, or a swollen abdomen, it could point to a health issue such as:
Pyometra (infection of the uterus)
Eclampsia (calcium deficiency post-whelping)
Pregnancy complications like dystocia
Veterinary evaluation is crucial if these symptoms occur.
What to Do If Your Pregnant Dog Is Panting
Start by observing the context and behavior around the panting:
Is it hot or humid?
Is your dog near her due date?
Is she showing other signs of labor?
Does she seem in distress or pain?
Read more: Dog Panting and Not Eating (What it means)
Home Care Tips:
Ensure a cool, quiet environment: Keep her in a shaded, ventilated area.
Provide constant access to water: Dehydration makes panting worse.
Limit stress: Avoid guests, loud noises, and disturbances.
Monitor her temperature: Normal dog temperature is around 101-102.5°F. A drop below 100°F may signal impending labor.
Prepare her whelping area: Nesting materials, bedding, and low lighting help her feel secure.
When to Call the Vet
Contact your veterinarian if you notice any of the following:
Panting is excessive and constant
Signs of pain or discomfort (whining, hiding, aggression)
Vomiting, diarrhea, or refusal to eat
No signs of labor after panting starts and 24 hours pass
Distended or hard belly
Green discharge or signs of fetal distress
Your vet can perform a physical exam, temperature check, and possibly an ultrasound or X-ray to assess fetal health and your dog’s condition.
Read more: Dog Panting Excessively at Night (What’s keeping your pup up?)
Key Takeaway
Panting during pregnancy is often normal, especially as labor nears. However, it can also be a sign of overheating, anxiety, or complications.
Know your dog’s normal behavior, and don’t hesitate to contact your vet if something feels off. With close observation and the right care, your dog can have a healthy, smooth delivery experience.