Hi I started taking them on the 11th first day of af, well some people have said they have made their cycles longer and some people say they've shortened theirs due to early ovulation, ive been taking ovulation tests since monday my 'fertile period' but have had nothing but negatives so hoping it come early and I missed it with the tests, I started to spot on friday cd15 though so very confused wether its extreemly early implantation (highly unlikely i know) ovulation but not taking my tests at the right time or due to the tablets :S time will tell I suppose x