the reason i advised against waiting is that a few years back i had three follicles and a pyschic had told me to do everything i could to get pg because i had a good one. so i triggered and everyone advised me to wait until the iui. well i didn't realise that i only had a few hours after ovulation and i'm quirky in that i ovulate exactly 24 hours after trigger on ovidrel. subsequently i ov'd about 13-16 hours before the iui and i missed it. hubby's quality is borderline normal and at the time i was concerned more with numbers.
also, i read that if you have mf involved it's better to clean out the system of any bad sperm and the way you do that is by him ej every night.
best of luck for this cycle!