I have been on the NuvaRing for 2 years. I love it because I don't have to take a pill. However, with the slightest change in schedule (taking it out Sunday AM instead of Sat night for example) my cycle is thrown totally off, late, spotty periods, breast tenderness when I start my new ring. This has happened to my twice and both times I went through about 4 home prego tests. If your reading this and have similar symptoms relax, from everything I have read the ring is HIGHLY effective, thats why we take it right!