I’ve been on NuvaRing since December, and I was instructed by my doctor to use it continuously (simply changing the ring once a month and not taking a break) to skip periods. After the first month, I started bleeding and didn’t stop literally til March, when I decided to start taking a break week. It worked and I stopped bleeding! But when I took my break at the end of April, I didn’t get my period. I know I’m not pregnant as I haven’t had sex since January. Is it something I should be concerned about? I read online that my lining may just be too thin. Thoughts?