I have, been on Noriday for 4 days now, and feel like I am going to have my period.
I took cerazette every day, never had a bleed at all, which suited me as I have fibroids and had very heavy uncontrollable periods.
Today I have really bad cramps and that heavy dragging feeling that used to accompany a period.
I didn't, on thedocs advice, take a break I took ym last cerazette and the next night started on noriday