Trigger Protocol on the Rate of Pregnancy After Intracytoplasmic Sperm Injection

• All patients will commence controlled ovarian hyperstimulation (COH) on day 2 or 3 of their menstrual cycle. The initial treatment will be a daily administration of either highly purified human menopausal gonadotropin (hMG) or recombinant FSH (rFSH, Gonal-F 150 IU, Merck Serono, S.P.A, Italy) administered subcutaneously and intramuscularly for a duration of 10-12 days. The treatment will be continued until the final oocyte maturation. The starting dosage will be tailored based on the patient's age, antral follicle count (AFC), body mass index (BMI), serum FSH and AMH levels on days 2-3, as well as the patient's previous response to COH.