Buserelin preparation is often used in IVF cycles. However in mild stimulation protocols it is not something often used. Especially for patients with very low ovarian response it is not ideal. Your stimulation dose was reduced from 125 to 100 unit, which is quite significant. (We normally use 75 unit to achieve single follicular development.) So it may have had more an effect on your response than the Buserelin preparation.
Gentle/Mild stimulation protocols are aiming to retrieve 3-4 egg maximum anyway. If you'd like any more information then please give us a call.