How to tell if your dog is pregnant

Generally after breeding, the owner needs to remember the breeding time, around 28-35 days, you can go to the hospital for an ultrasound scan to see if the dog has a gestational sac or around 42-45 days for an X-ray to see if the dog is pregnant. Secondly, by appearance and experience, a pregnant dog’s nipples will gradually become redder and her belly will grow in size, which may be accompanied by vomiting.