If you have a female pet, you may want to consider having her spayed. Having a pet that is capable of birthing may sound fine, until you have more pets than you can deal with. Sadly, many animals are euthanized at shelters each year because there are not always enough willing adopters. You may not plan on letting your pet become pregnant, but all it takes is one accidental encounter. If you have an outdoor pet, the chances of this occurrence increases.
If you have a male pet, it is recommended that you have him neutered. Neutering your pet not only benefits the burden of pet overpopulation, but has a direct effect on your pet as well. In the long run, it is worth having your pet neutered. When it comes down to the bottom line, it benefits everyone as you will save money in not having to care for extra unwanted animals.