Hi doc..I generally get irregular periods all the time..for example it will happen in this way..I take lot of stress so maybe coz of that it happens not sure though..5th may then 6th June then 10th July then 30th August then maybe 30th September..so it's hardly regular from the beginning of the time..but this time I have still not got my periods..date was 5th August but it's almost going to be 50 days and  u no periods till now..I had taken evion 400 capsules for vitamins for around 20 days in August..does Evion capsule has affected the menstrual cycle? Also what to do if it has affected it...also what do for irregular periods?