I'm currently in my tww of my 3rd IUI cycle and i'm not positive that I'll be getting a BFP this time around (BT this Friday 13th!). In speaking with my FS last round, if we didn't have success after 3 rounds of IUI then we would move to IVF. I understand what IVF is but I want to get a better understanding of the timings and processes that take place. After a second round BFN from IUI I spoke with the nurses about moving straight to IVF and they said it should be ok but would have to consult with FS first....in the meantime they made an appointment for day 21 of my cycle both with the nurses and the councillor. In the end FS said no to IVF for that round - but what I want to know is why does nothing happen until sooo late in the cycle?? What's the process after day 21?? Sorry for the long winded story - it's probably not what I should be focussing on but I am the sort of person who needs things mapped out for the next 12 months!