Hello Doctor, I am 22 years old, I had first taken an ipill on 16th sept 2014, bleeded after a week and then my menstrual came after a month. However, I had again taken an ipill on 26th nov 2014, and the same cycle repeated. My last menstrual was on 11th jan 2015, and since then my periods have not come. I have used prega news twice in march and both the tests were negative. My periods have always been irregular and I am also having university exams, so it is slightly stressful. Not getting my periods is creating anxiety, please suggest what should be next course of action.