i have been having irregular period for the past 6 months I got a normal one on July 2011 which ended on the 29th of the month. I got my next period on October 15th which lasted for 5 days and from then to now i have not had any period. i visited the doctors who advice i am overweight which could be the problem and put me on Primolut N 15 tablets 5mg. its the fourth day after i finished the dosage but i still have not got my period. any advice