During the last decades, owing to the growing tendency of women to delay childbearing plans because of career and personal priorities, fertility specialists today are seeing more and more women with poor ovarian reserve and with poor ovarian response Controlled ovarian hyperstimulation (COH) is considered a important factor in the success of in vitro fertilization-embryo transfer (IVF-ET), enabling the recruitment of multiple oocytes and, thereby, resulting in more than one embryo. However, owing to the extreme variability in ovarian response to COH, in a subgroup of patients with poor ovarian response, this method may yield a very small number of follicles After succeeding in maximal recruitment of the follicles, the triggering of ovulation is extremely important in order to achieve, as many as, mature oocytes.