You can, but you shouldn't! The dog is too young and not fully developed yet. Once the female goes into heat for the first time, she can still get pregnant. If that happens, it would be very dangerous for your dog. A dog should not be bred until it's at least 2 years old, and only if you are experienced, it's had testing done and you are doing it to better the breed. If your puppy does happen to get pregnant and has complications during whelping (delivery) and you don't know exactly what you are doing, and how to assist the mother and her puppies during a complication, your female and her puppies can die!It would be like a 10 year old having a baby! I used to breed Chihuahuas! Before I started breeding I studied breeding for years and had everything memorized on what I have to do! In all the time I was breeding and helping my females during whelping, I never lost a female and I never lost any of the puppies. That's only because I knew exactly, step by step, what to look out for and how to assist my females. You really should have your dog Spayed. It's a 24/7 job and when breeding is done the way it's supposed to be, it gets expensive. Vet visits are Mandatory! Make sure that you keep your female as far away from males, that are not Neutered. Her heat will last approximately 3 weeks, she will go into heat approximately every 6 months and males will do anything they can to get to your female, when she is in heat to mate with her. Please don't allow her to get pregnant, when she is still a baby herself!This is a picture of my first litter of Chihuahuas years ago! From the bottom to the top, Gigi, Casper and Lucy!
You can but it is not recommend. Its like a woman with her first years. Its not mature enough
In the wild, canines live in packs... (eg. Wolves, hyenas). In these packs, only the alpha male and female are allowed to breed a have offspring. They can only become an alpha after maturity, long after their first year and first heat. Therefore, they are not meant to breed on their first heat. Not breeding a dog on her first heat, is not because we as humans want "control" as you say. It is fact, that doing so is dangerous, and proven to be so, when many dogs end up dead or in critical care from these mistakes.
It would be like making a 12 year old girl get pregnant. I wouldnt recommend it.