Dog Reproductive and Breeding Cycle

If you want to avoid your female dog from going into heat, there are injections the veterinarian can inject into the dog that lasts approximately five months. This kind of injection interferes the reproductive cycle of the female dog, however, if the treatment is interrupted, the reproductive cycle of the dog goes back to normal, obviously meaning that the dog is then able to become impregnated again. Interrupting these kinds of treatments can also affect the future fertility of the dog, which is why it's not recommended, especially if you are intending for your female dog to have puppies later on. It can also increase the chances of breast cancer and diabetes. There are hormonal pills that allow you to temporarily postpone the heat of the dog and which are useful for example, when you have a dog show etc. There are also other types of products such as sprays and aerosols that cover the smell of the female dog in heat; however, they have not proven to be the most effective.  If your female dog manages to escape your property while she is in heat and then comes home impregnated, the veterinarian can interrupt the unwanted gestation by giving the dog some injections; the first one of these should be done on the first day the dog copulated or before two days is over. After this procedure the female will still be in heat, therefore you should still keep the dog in the house until she comes out of heat.