I was on siphene from day2 for about 5 days and from day 4 I started taking HMG injection for three days and from day 9 I had my follicular scan continuously till day 17th.where the follicle to get ruptured,I was given rupture injection on day 13 (size of the follicle was 31 * 26 on day 13)and it got ruptured on day 17th.Had about 7HMg injections during my follicle scan where everyday 1 injection was given.I was then put on utrogestan from 19th day on utrogestan 200mg.Morning and night I was taking the tablet vaginally.I was to complete the course on 33rd day.but I completed on 32nd day I had brown spotting and on 33rd morning I had large amount spotting (seems to be light dust particles coming out).I was asked to do pregnancy test on the same day.But it came negative.I don't understand what is happening.Is it periods which I have got or can I wait till 40th day.Also I was having severe low back pain for all these days.Mine is irregular periods.I also had two missed abortion earlier.please help me as to what is my condition now.