The signs of pregnancy in pugs can be extremely subtle during the first half of the 63-day gestation period. If you think that your pug could be pregnant, look out for symptoms, but also seek help from your veterinarian. When breeding pugs, it is important to be aware that this type of dog can experience difficulty when delivering puppies because the breed has a large head in comparison with its body.
Look for subtle changes in your pug's behavior and personality, as this can be an indication of pregnancy. Your pug may become increasingly affectionate, preferring lots of attention from you, or alternatively she may become increasingly irritable and unfriendly towards strangers, preferring to be alone. The the pregnant dog may also grow to dislike loud noises or become increasingly lethargic.
Take note of your pug's size and weight. If your dog appears to have gained weight, this can indicate pregnancy. Notice if there is an increase in your pug's appetite, as this can also be an indication of a pregnant pug. Four weeks into the pregnancy, the dog's abdomen will have increased significantly. According to DogBreedss.org, the abdomen will generally grow to between 20 and 50 percent larger than its usual size.
Take your pug to see a veterinarian if you suspect that she may be pregnant. Your veterinarian can tell if your dog is expecting by taking an X-ray. This procedure also has the added benefit of revealing the exact number of puppies that are in the womb.