Natural methods of birth control include fertility awareness-based methods, diaphragm, condoms, and the copper IUD or Paragard.
copper IUD
The copper IUD or Paragard is one of the few non-hormonal methods of birth control. It works by impairing sperm and preventing implantation.
The Pros and Cons of the Copper IUD (ParaGard)
The copper IUD or coil (ParaGard) is a non-hormonal method of birth control. Its main advantage over hormonal methods is that it contains no contraceptive drugs and therefore permits natural, ovulatory cycles.