Even bleeding may be hard to spot, as many dogs will clean up the blood themselves before you spot it. However, if you know your dog is pregnant, keep an eye out for bloody discharge.
A dog that has lost a pregnancy may even lose weight instead of gaining it. The usual gestational period of a dog is 63 days. [3] X Trustworthy Source American Kennel Club The American Kennel Club (AKC) is a purebred dog pedigree registry in the United States. The AKC advocates for the responsible ownership of dogs and promotes purebred dog events, such as the Westminster Dog Show. Go to source Your pregnant dog’s belly should grow dramatically during this time.
Infectious diseases, such as Salmonella, Brucella canis, canine Herpes, Parvovirus, or Toxoplasma. Trauma Uterine infection Hormonal problems Medications that promote miscarriage, such as chemotherapeutic drugs, chloramphenicol, oestrogen, or high dose steroids
If your dog has already had an X-ray or ultrasound to document the pregnancy, you should be able to assess whether all of the fetus’ that were in the uterus are still present.
There are a variety of reasons that your dog may have miscarried. A veterinarian may be able to figure out the reason why. In some cases, a miscarriage occurs due to a infectious disease. Your veterinarian may need to do biological tests to confirm what type of infection caused the miscarriage. If this is the case with your dog, it will need veterinary care to recover from the infection. [6] X Research source
Keep this in mind when dealing with your dog and coming to grips with the loss of a potential puppy. The miscarriage is not your fault or the fault of your dog.
This includes feeding your pregnant dog properly, getting it proper healthcare, and preparing properly for labor and delivery.