Important things to keep in mind are:
1. Breeding is expensive: your dog and the other dog need to have genetic testing done to avoid breeding ill pups
2. Time: you will need to socialise the puppies, clean after them, raise them in your house, which means making that puppy safe for tiny pups.
3. research: make sure to select the right dogs and dog parents. What do you do, if the mum dies? How many litters, do you need the council certificate? What if a pup is not adopted.
it is a lot of work, that’s for sure and definitely take time to think about it. Research andread lots about it before making a decision