You have PCOS
and taken YASMIN
tab to regularize your period.
You should take One tab daily on scheduled time from day 1 of your period to 21 days continuously. Then pill off for 7 days and you get withdrawal bleeding similar to period on those days.
Next packet will be started after period over like (21 days ON-7 days OFF-21 days ON...continue)
If your period becomes regular,then you certainly not get period on marriage day.
Wish you happy marriage and honeymoon day.