A person is generally able to tell that a pit bull is pregnant between 26 and 35 days after the dog has been bred. This can be detected by feeling around the abdomen. A person may also choose to bring the dog to a veterinarian for a proper diagnosis. Pregnancy is confirmed by performing an X-ray on the female.
Beginning at approximately 45 days into the pregnancy, the mammary glands become swollen and filled with milk prior to the birthing of the puppies.Learn more about Dogs