Hi Sue,
My IVF cycles were down reg stim cycles. First one I was on synarel - 2 sniffs a day - plus 187.5 gonal F. Dr was worried about OHS so he brought me down to 150 gonal f. I apparently had over 20 follies at EPU but only got 5 eggs. I there was only one or 2 that were able to be fertilised but apparently they didn't take.
2nd cycle I was put onto Lucrin jabs instead of synarel and the Dr kept me on 187.5 gonal f. I drank lots of water that cycle and from 17 follies they got 13 eggs.
I can't remember what drugs I used for the trigger sorry.

I'm not sure if there is a protocol for the amount of drugs or type that they use - from my experience (I was using gonal f during my AI attempts as well) they just seemed to be playing around with the dosage until they get it right? I guess next time they will be playing around with my luteal support dx!!

Hope that helps you.
blue xx