The progestin-only oral contraceptive--its place in postpartum contraception. 
The progestin-only oral contraceptive (POC) is not a widely-used method of contraception, possibly due to competition from other contemporary contraceptive methods or misunderstanding and prejudices among clients and/or service providers.  Because of its underuse, the POC, as a contraceptive method, is under-studied.  This article evaluates the general merits of the POC and its disadvantages relative to combined oral contraceptives (COCs) and other contraceptive methods, specifically during the postpartum period and particularly for breastfeeding women.  We find that the POC appears to be a safe and acceptable contraceptive method for postpartum women who are fully or nearly fully breastfeeding at six months postpartum or when menstruation returns.  The POC could be considered for use at any time by non-breastfeeding postpartum women.  The need for empirical studies of the POC is also discussed.