To avoid pregnancy in a natural way, without using external or artificial contraceptive methods, it is necessary for each woman to keep a strict control of her menstrual cycle. Even so, it is a risky method of low effectiveness since the menstrual cycle is subject to spontaneous changes and alterations.
Read the full article on: Contraceptive methods: types, efficacy, risks and prices ( 34).
By Andrea Rodrigo B.Sc., M.Sc. (embryologist), Elena Santiago Romero M.D. (gynecologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Sara Salgado B.Sc., M.Sc. (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 05/10/2024