"i&#039;ve been on this now for a little over a year. at first the birth control worked great for me! i would only have about four day periods and i barely ever had cramps. but starting about three or four months ago, everytime i&#039;m not supposed to be on my period i will start on my first or second week of the pills and will be on it until my month of pills are gone. i&#039;m not sure if it&#039;s my bodies way of saying it doesn&#039;t like this pill anymore or what.. has this happened to anyone else? i&#039;m going to my gyno soon and i want to either switch my bc or get completely off it."