Oral contraceptive pretreatment in women undergoing controlled ovarian stimulation in ganirelix acetate cycles may, for a subset of patients, be associated with low serum luteinizing hormone levels, reduced ovarian response to gonadotropins, and early pregnancy loss

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Oral contraceptive pretreatment facilitated scheduling of pure FSH/GnRH antagonist cycles but in a small subset of patients was associated with low serum LH levels, reduced ovarian response, and early pregnancy loss. Supplementation with LH could be examined as a possible way to improve cycle outcome.