The study will be conducted in the IVF unit of Cairo University. Females undergoing ICSI cycles in the age between 20 and 40 years will be allocated to one of 2 groups. Long agonist protocol will be used. Allocation to either one of 2 groups will be done on the day of oocytes retrieval. The first group will take (in addition to the routine care) daily human menopausal gonadotropin drug injection for 2 weeks. The second group will receive the routine care.