[Kizzys Mom]

How often is a dog suppose to come into heat? Is it every month like people or just every so often? And when they are in heat when should they be bred, like how many days into the heat cycle should you wait to breed one? and how long do they carry the litter before labor. Just curious as I've never been around dogs being bred. Are puppies more relaxed after they have babies or I guess I mean mature or are they just as hyper most of the time?