Suggest Treatment For A Prolonged Menstrual Period

I always had irregular menstrual cycle, I have been under medication for almost 3 years now. This time the bleeding had not stopped and it is 14 days since I got my periods. I was advised trapic MF for 4 days along with Modus 10 from the 4th day; The course is over but the bleeding is not arrested as yet. I am 32 now and obese. I do not have children and wanting to have one.