A personal series of 600 private patients using natural family planning techniques is presented. The total failure rate was 4.7 pregnancies per 100 woman-years. The advantages of this method over conventional contraceptive techniques are stressed.
Pearson JT et al., 2020Journal of Women's Health (2002)
Background: Digital fertility awareness-based methods of birth control are an attractive alternative to hormonal or invasive birth control for modern women. They are also popular among women who may b...
RRM Methods > General FABM > EffectivenessRRM Methods > General FABM > Clinical OutcomesContraception/Comparison > Effectiveness > Typical Use
Grimes DA et al., 2004The Cochrane Database of Systematic Reviews
Background: "Fertility awareness-based methods" (FAB) of family planning "involve identification of the fertile days of the menstrual cycle, whether by observing fertility signs such as cervical secre...
Bonnar J et al., 1997Advances in Contraception : the Official Journal of the Society for the Advancement of Contraception
A pilot study was conducted in Ireland to test the effectiveness of the calendar method of contraception. A conservative rule was used, requiring on average 16 days of abstinence per cycle. Among the ...
RRM Methods > General FABM > EffectivenessRRM Methods > General FABM > Clinical OutcomesContraception/Comparison > Effectiveness > Typical Use