Hello Sir I Want To Know From You, My Deviry

Hello sir I want to know from you, my deviry tablet last two days I m taking 2 tablet per a day... Can u plz tell me how many days should I will continue it....
ND main thing is that in next week means at 24 Nov my marriage is there... ND still my period not come... Now sir whte should I do... Still it continue.. Or not