i have experienced irregular periods for the last one year because i gained lot of weight about 4 to 5 kgs. and dint do any kind of physical activity. i consulted a doc and she gave me modus progestrone tablet for 5 days.. since i stopped the tablet it has been 9 days and i havent gotten my period yet..so i am a bit worried as to what could be the problem. is it safe to take modus? and i have started goin to the gym from last 3 days..and will continue to go i am not pregnant . please help me with my missing periods .