Hello. I am on my second round of Clomid and doing IUI. The first round i took clomid from cycle day 3-7, and a week later had my follicle scan and i had two big follicles, one on each side about 18-19 in size. I had the IUI done that same night (no trigger shot) and had timed intercourse. However i still ended up getting my period. This time i mistakenly took the clomid cycle day 2-6 and only had a 2 day period. is this normal? Are there chances this time the clomid will not work?