its one of those REALLY hard questions for me! I had several generations of cats and it was HARD work.. and way too many kittens.. I also kept losing them as they vanished whilst finding mates .. so finally i sterilised and neutered all three of them.. it was one of the hardest things to do in my life, second to putting my dog down on the dining room table..

but
it was the right thing to do.. they have a very easy life, the female cat Grey is so happy and peaceful and she had one litter and lives with her son.. Ironically one of the cats had a litter of kittens many weeks after the operation.. VERY strange!