This is one of those questions that you have to answer before you buy a puppy. Even if you have made the decision and purchased puppies from titled parents with a good pedigree, even that is not enough.
At what age can a dog be knit? How often can a male dog be knit? How to choose the right time to mate? Where should I mate? Why can a mating not happen? What is a lock and what is it for? What to do after the mating? What is a test mating?
Although in nature canine companions do a fine job of giving birth on their own, you shouldn't rely on nature. Your dog lives in a different environment, eats different foods, and is largely dependent on you.
False pregnancy is a syndrome of physiological and mental disorders in a female that occurs after a heat that is not accompanied by insemination, it should be noted that false pregnancy is a syndrome, not a disease. False pregnancy can be called pseudo-pregnancy.