Trish, I was on 150ui all the way through to trigger and I got 7 eggs.

I'm surprised your FSH hasn't been measured anywhere along the line...I thought it was a standard thing that IVF docs want to know (if your FSH is high then that is an indication of diminished ovarian reserve and resistance to stimming).

I'm under the impression that the first cycle is mainly guess-work, although PCOS women usually start on a lower dosage due to risk of OHSS.

Weight must play some factor, as bodily fat inhibits oestrogen (so I read somewhere) but I don't think there is such a science to the dosage.