Suggest Remedy For Abnormal Menses Cycle

Hello I started taking Famynor about 2 weeks ago its now been a week that I haven't gotten my period on its due date, I am worried although this hasn't really bothered me before because I don't really take note of my period...I haven't felt weird or anything...is there something I can do to jump-start my period? I have tried green tea but it does not seem to work...