title: Protocol for determining fertility while breastfeeding and not in cycles.
abstract: A protocol was developed and evaluated for nonovulating breastfeeding women to determine potential fertility with an electronic hormonal fertility monitor. The amount of required abstinence (i.e., days of potential fertility) through the first menstrual cycle indicated by the fertility monitor was significantly lower (17% of the total days) compared with the amount of abstinence (50% of the total days) indicated by the self-observation of cervical mucus.
authors.affiliation: Marquette University College of Nursing, Institute for Natural Family Planning, Milwaukee, Wisconsin 53201-1881, USA. Richard.fehring@marquette.edu
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Fehring
authors.forename: Mary Lee
authors.initials: ML
authors.lastname: Barron
authors.forename: Mary
authors.initials: M
authors.lastname: Schneider
mesh_terms: D000328:Adult; D001942:Breast Feeding; D002582:Cervix Mucus / Q000737:chemistry* / Q000502:physiology; D005260:Female; D005298:Fertility / Q000502:physiology; D006801:Humans; D010061:Ovulation Detection / Q000295:instrumentation / Q000379:methods*; D010865:Pilot Projects; D012189:Retrospective Studies; D012746:Sexual Abstinence / Q000502:physiology