If your dog has recently mated, you may be wondering whether she is pregnant and how soon you can find out. Although changes in behaviour and physical appearance can provide clues, they are not reliable enough to confirm pregnancy on their own.
Fortunately, there are several veterinary methods that can help establish whether your dog is expecting puppies. Knowing when to arrange a dog pregnancy check can help you plan the right care for your dog and prepare for the weeks ahead.
Can you tell if your dog is pregnant?
In the early stages, it can be difficult to tell whether a dog is pregnant. Some females show very few noticeable changes, while others may experience changes in appetite, energy levels or behaviour.
Possible signs of pregnancy include:
- Slight changes in appetite
- Sleeping more than usual
- Enlarged or more noticeable nipples
- Gradual weight gain
- A growing abdomen as pregnancy progresses
- Changes in affection or behaviour
However, these signs can also occur for other reasons. Some dogs experience a false pregnancy, which can cause physical and behavioural changes despite there being no puppies.
The most reliable way to confirm pregnancy is through an appropriate veterinary examination.
When can you confirm a dog’s pregnancy?
In many cases, pregnancy can be investigated around 25–30 days after mating, although the ideal timing will depend on your dog’s circumstances and your vet’s recommendation.
It is worth remembering that the date of mating does not always accurately reflect the date of conception. Dogs can mate before or after ovulation, so the stage of pregnancy may differ from what you expect based on the mating date alone.
If you are unsure when your dog ovulated, your vet can advise on the most suitable time for testing.
How can a vet confirm a dog’s pregnancy?
There are several methods used to check whether a dog is pregnant. Each has its own advantages, and your vet can recommend the most appropriate option.
1. Ultrasound scan
An ultrasound scan is one of the most useful ways to confirm pregnancy in dogs. It can often detect pregnancy from around 25–30 days after mating, depending on timing and the equipment used.
An ultrasound allows your vet to look for gestational structures and developing puppies. It can also help assess whether pregnancies appear viable by checking for signs such as fetal heartbeats.
One limitation is that ultrasound is not always the most accurate way to count the total number of puppies, particularly when several puppies overlap on the screen.
2. Relaxin blood test
Relaxin is a hormone produced during pregnancy. A veterinary blood test can detect this hormone and help establish whether a dog is pregnant.
Relaxin testing is generally more useful once pregnancy has progressed sufficiently for the hormone to be detected. Testing too early may produce a negative result even if your dog is pregnant, so your vet may recommend repeating the test if there is still a possibility of pregnancy.
Unlike human pregnancy tests, which commonly detect hCG, canine relaxin tests are designed specifically for dogs.
3. Veterinary abdominal examination
An experienced vet may sometimes be able to feel developing gestational structures through the abdomen during early pregnancy.
However, this method depends on the stage of pregnancy, the dog’s body condition and the experience of the person performing the examination. It is not suitable for every dog and should not be attempted by repeatedly pressing your dog’s abdomen at home.
Ultrasound or other veterinary tests may be recommended to provide further confirmation.
4. X-ray later in pregnancy
An X-ray can be useful later in pregnancy, once the puppies’ skeletons have developed sufficiently to be visible.
This is generally performed in the later stages of gestation and can help your vet estimate how many puppies to expect. It is not usually the first choice for confirming an early pregnancy.
Do home pregnancy tests work on dogs?
Human home pregnancy tests do not reliably detect pregnancy in dogs because they are designed to measure a different hormone.
Although you may find various home-testing products advertised online, it is important to understand what each test measures and whether it has been validated for use in dogs.
If you suspect your dog is pregnant, speak to your vet about the most appropriate testing method rather than relying on symptoms or a human pregnancy test.
What if your dog shows signs of pregnancy but the test is negative?
A negative result does not always rule out pregnancy, particularly if testing has taken place too early.
The result may need to be reviewed alongside the date of mating, your dog’s reproductive history and the method used.
Your vet may recommend repeating a blood test or arranging an ultrasound scan at a more suitable time.
It is also possible that the changes you have noticed are related to a false pregnancy or another health issue rather than an actual pregnancy.
If your dog has recently mated, arranging a dog pregnancy check at the right time can give you greater certainty and help you plan the care she needs if she is expecting puppies.
