The Four Methods of Ovarian Stimulation in Patients With Polycystic Ovarian Syndrome

After obtaining informed consent to participate in the study, the subjects will be randomly divided into the following 4 groups: The group of minimal ovarian stimulation with rec-FSH or HMG. The group of mild ovarian stimulation with rec-FSH or HMG. In all 4 experimental groups, after reaching at least three follicles the size of 12 millimeters (mm), daily administration of 0.25 milligram (mg) Cetrotide (antagonist GnRH) will be started and after reaching at least three follicles the size of 17 mm, 500 microgram Ovitrelle (recombinant Human curionic gonadotropin) will be prescribed. 36 hours later, ovulation process will be done. On the day of Ovitrelle administration, serum levels of estradiol and progesterone will be also evaluated. Based on the patient's condition and the quality of obtained oocytes and embryos, 2 embryos will be transferred.