
Copper IUDs or coils (ParaGard or the new Miudella) are non-hormonal methods of birth control.
The main advantage of a copper IUD over hormonal methods is that it contains no contraceptive medication and therefore permits natural ovulatory menstrual cycles.
Of course, it also has some downsides.


Natural or non-hormonal contraceptive methods include fertility awareness-based methods, the diaphragm, condoms, and the copper IUD or Paragard.