Endometrial Shedding Prior to Ovulation Induction Pilot Study

Inclusion Criteria: * Oligo-ovulation defined as having less than or equal to 8 menstrual cycles in the past year or inter-menstrual periods of 45 days or longer * general good health * ability to have timed intercourse or intrauterine insemination * no evidence of tubal dysfunction * no evidence of a uterine cavity abnormality * no evidence of male factor infertility Exclusion Criteria: * a baseline ultrasound showing an endometrial lining greater than 1.0 cm * a baseline ultrasound showing an endometrial lining of less than 0.5 cm * a positive progesterone level at baseline bloodwork * a positive beta human chorionic gonadotropin level at baseline bloodwork * body mass index of greater than 40 * women who have previously taken clomiphene citrate for ovulation induction within the last 6 months * women who are taking metformin * women who are taking a progestin for luteal phase support.