Im having the total opposite problem! I was on cerazette up until new year ish when I decided to come off it as id missed a few over xmas, then vomiting at new year & a course of anti-b's in jan so figured that month it wouldnt be working anyway.
So yup, been off it 8weeks +, and not taking it reg for a cpl weeks before that.... and no AF!
. Im testing every week and all negative. Im not really ttc but still having sex 1-2 a week with no protection. (If it happens it happens, and if I get AF il decide whether to start again)
Usually if I miss a few pills I get break through spotting for cpl days so was sure I would have a bleed.... but nope. Maybe I did in mid dec but I cant remember now.
I think cerazette must just take ages to leave your body. Dont want to worry you, maybe you lucky and it leaving your system quicker than me. x