Document Type

Article

Language

eng

Format of Original

10 p.

Publication Date

1-2013

Publisher

American Board of Family Medicine

Source Publication

Journal of the American Board of Family Medicine

Source ISSN

1558-7118

Original Item ID

doi: 10.3122/jabfm.2013.01.120126

Abstract

Introduction: The postpartum period is a challenging time for family planning, especially for women who breastfeed. Breastfeeding delays the return of menses (lactational amenorrhea), but ovulation often occurs before first menses. For this reason, a protocol was developed to assist women in identifying their return of fertility postpartum to avoid pregnancy.

Methods: In this prospective, 12-month, longitudinal cohort study, 198 postpartum women aged 20 to 45 years (mean age, 30.2 years) were taught a protocol for avoiding pregnancy with either online or in-person instruction. A hand-held fertility monitor was used to identify the fertile period by testing for urinary changes in estrogen and luteinizing hormone, and the results were tracked on a web site. During lactational amenorrhea, urine testing was done in 20-day intervals. When menses returned, the monitor was reset at the onset of each new menstrual cycle. Participants were instructed to avoid intercourse during the identified fertile period. Kaplan-Meier survival analysis was used to calculate unintentional pregnancy rates through the first 12 months postpartum.

Results: There were 8 unintended pregnancies per 100 women at 12 months postpartum. With correct use, there were 2 unintended pregnancies per 100 women at 12 months.

Conclusion: The online postpartum protocol may effectively assist a select group of women in avoiding pregnancy during the transition to regular menstrual cycles.

Comments

Published version. Journal of the American Board of Family Medicine, Vol. 26, No.1 (January 2013): 35-44. DOI: 10.3122/jabfm.2013.01.120126. © 2014 American Board of Family Medicine. Used with permission.

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