I want my children to see the miracle of birth:

I can't afford to desex my cat:

Desexing is a relatively cheap operation, and if money is an issue are you prepared for the unexpected? what would happen if the cat needed expensive veterinary care after a car accident or being attacked by another cat? Pet ownership is a responsibility, and every person considering getting a pet should be fully aware of the costs, and demands before making a decision. Cats can live for up to 20 years, and can cost quite a sum of money. The cost of desexing your cat is a mere drop in the ocean compared to the potential costs if you keep the cat entire. For example: 

If the queen has problems giving birth, she may need an emergency caesarean. 

The queen can develop mastitis, again requiring veterinary care. If your queen develops mastitis, it may fall upon you to hand feed the kittens, every 2-4 hours (day & night). After they have been fed, you will need to stimulate them to go to the loo. 

As stated above, there are several health risks associated with keeping an entire cat. All of which can be costly to have treated. 

There is also the moral debate. Every year, millions of cats are euthanised because there just aren't enough homes for them. There are shelters all over the world full of cats who desperately need a good home & somebody to love them. Each pet owner should consider this before adding to the overpopulation of cats by breeding their own cat. 

If you are serious about becoming a breeder, you should buy the best purebred cat money can buy, and register yourself with one of the many cat clubs. Before breeding your first litter, you should spend several months or even years researching the ins & outs of feline husbandry, genetics, disease & breeding. You will also need to know if your breed of choice is prone to any health/genetic defects. If so, can they be tested for? Arm yourself with as much knowledge as you possibly can. There is far more to breeding than putting a male & a female together & waiting 63 days.