by Ana Mercedes Rodríguez Rodríguez, María Teresa Gutiérrez Prieto · EDITORIAL CIUDAD NUEVA · tapa blanda · ISBN 9788486987442
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«Regulación natural de la natalidad» is the guide to the Billings ovulation method by Ana Mercedes Rodríguez and María Teresa Gutiérrez (paperback, 280 pp.).
The work presents the Billings ovulation method, a natural system for regulating fertility without medication, based on daily observation of cervical mucus to identify fertile and infertile phases. It includes colour charts and addresses its application during breastfeeding, premenopause or post-pill, with efficacy data from the WHO.
The work is the second expanded edition, published in 1995, in Spanish.
Recommended for women and couples who desire natural family planning, without medication, whether to avoid or seek pregnancy.
