I have previously tried 6 iui cycles without success, I am 41 with no children, had a previously miscarriage and desperate to be a mother. IVF is very expensive and we can only afford one go. This is our last chance. My Dr rang this morning to change my appointment and is talking about doing the egg collection on day 12 because he is going away (I normally ovulate on day 14). Will bringing it forward effect our chance of success. Also how many follicles should I have to go ahead with the procedure. I had a scan on day 7 which did not show a great response, maybe 5 follicles on one side. My Dr increased the medication, will that bring forward more follicles. I am wondering if due to the fact I only get one go at egg collection if I would be better to leave it for another cycle where they can give the higher dose of medication from the start to try and get more follicles.