Natural Planning Calendar. Natural family planning (nfp) is the general title for the scientific, natural, and moral methods of family planning that can help married couples either achieve or postpone pregnancy. As a conception tool, rhythm can be highly effective for getting pregnant as it identifies a more expansive fertility.

Natural family planning (nfp) relies on the ability to track ovulation in order to prevent pregnancy. As a conception tool, rhythm can be highly effective for getting pregnant as it identifies a more expansive fertility.