This may be because the dog smells or hears something abnormal, so it becomes restless, or it may be that the dog's emotional instability causes it to become frightened and restless. This may also occur if the dog is about to give birth. Parents can judge the reason why the dog is acting like this based on the actual situation.

Tip:

It is best for parents to take a female dog to the hospital for a check-up before giving birth to see if the fetus is developing normally.