What should I do if I suspect my dog is pregnant?

If you suspect your dog is pregnant, the best thing to do is get her to a veterinarian. Starting 28 days after ovulation, which is relevant if you time with progesterone, you can start to detect on ultrasound. You can actually detect sooner, but comfortably at 28 days. And that will give you an answer if she's pregnant or not. And then, if it's later in pregnancy as the puppies and their skeletons form, you can detect that on x-ray and see an accurate count of how many puppies are coming. That's always the best place to start is to confirm she's pregnant and figure out where you are in the process.