Hello, I don't have any allergies or previously diagnosed health problems but wish to start daily contraception pills for self assurance . My periods is regular and almost on time, my next date is on this 18th and goes for about 5-6 days ,just the first 2 days i get cramps and rest days are good with normal flow as for last 5-6 months. Please recommend me some of the pills available in indian market which could be suitable and could be used for long term without much harm. Will my period cycle be affected anyhow after using ocp or cause any other changes in my body???