I am on nuvaring, and i use a new one consecutively every 3 weeks, i've been on it abt 2 yrs now but i have a light period every 2 weeks, why?

Breakthrough bleed: continuously being exposed to contraceptive hormones is perfectly safe, however can be associated with some breakthrough bleeding or spotting that can sometimes be hard to predict. Try going through a ring free week just one in order to reset the lining of your uterus. Expected during that week you will get a withdrawal bleed.