Hi, I am a 21 year old who has been on nuvaring for around two years, and I love it. I use nuvaring continuously to only get my period every three months. A few days ago, I took the old nuvaring out and immedietely put a new one back in, and it has been in since then. However, tonight I have fairly heavy bleeding which I believe is my period. Why do I have my period with the nuvaring in? Is this okay? Should I leave nuvaring in?