If you decide to delay spaying or neutering your dog, for whatever length of time or whatever reason, here is something else to consider- Some people just may not be cut out to deal with an intact male or female dog in their household. Here are some caveats and considerations:. Dogs get pregnant while bleeding. Some dogs cycle every six months; more primitive breeds, such as Basenjis or Tibetan Mastiffs, come into heat only once a year. Get more facts on dogs in heat at Dogster. A dog will begin her heat cycle after about 6 months of age.
Canine reproduction is the process of sexual reproduction in domestic dogs , wolves , coyotes and other canine species. In domestic dogs, sexual maturity puberty occurs between the ages of 6 to 12 months for both males and females, although this can be delayed until up to two years of age for some large breeds. The average length of the reproductive cycle for females is 2—4 weeks. There is a tremendous variability in the maturation age between breeds, and even within a breed of dog.