To avoid getting pregnant naturally without using user-directed contraceptive methods, it is necessary to monitor your menstrual cycle throughly. Even so, it is considered to be a birth control method of low-effectiveness, as the menstrual cycle usually depends on the woman's monthly body changes and sudden alterations.
Read the full article on: Which Contraceptives Really Work? – Types of Birth Control Methods ( 34).
By Andrea Rodrigo B.Sc., M.Sc. (embryologist), Sara Salgado B.Sc., M.Sc. (embryologist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 03/17/2016
