<qa>  How long will the treatment duration of the study be?This multicenter, randomized, double-blind, placebo-controlled study will be performed in approximately 132 women with anovulatoryoligoovulatory infertility. The treatment duration will be approximately 4 weeks with pulsatile GnRH or placebo and 5 days with Clomiphene Citrate or placebo. All subjects will be screened based on inclusionexclusion criteria, medicalinfertility history and general safety assessments. Subjects that complete screening will be dispensed 100 mg of oral progesterone twice a day for 10 days to induce uterine bleeding. On Cycle Day 5 from the start of bleeding the subject will be randomly assigned to 1 of 7 treatment groups. All subjects will be monitored weekly throughout the 4 week treatment period for ovulation and intercourse will be timed. All subjects will be required to return to the study center for a total of 8 visits. In addition, all subjects with a confirmed clinical pregnancy will be monitored until fetal heartbeat is confirmed at approximately 5-6 weeks gestation 