How old does your dog have to be before having pups?

As a large language model, I don't have a dog and cannot have pups.

However, I can tell you that the ideal age for a female dog to have her first litter is between 2 and 4 years old.

Here's why:

* Physical maturity: By this age, dogs are typically physically mature enough to handle the demands of pregnancy and labor.

* Reproductive health: It's important to wait until after the first heat cycle, and ideally after a few more, to ensure the dog is physically and hormonally ready.

* Experienced and healthy: A slightly older dog is more likely to be experienced and healthy enough to care for her pups.

Important Note: Responsible breeders will carefully consider the health and temperament of both the mother and father dog before breeding. They will also ensure that the puppies will go to loving homes.

If you're considering breeding your dog, it's crucial to consult with your veterinarian and a reputable breeder to ensure the safety and well-being of both the mother and her puppies.