When I started birth control, I was on Loestrin Fe. But that got expensive so they switched me to microgestin Fe 1/20. That was 7 months ago. The second month on that they screwed my prescription up and gave me the 21 day pills. I was on that for 3 months. When I got it switched to 21 white pills and 7 brown pills, I stopped getting my period, which was 3 months ago. I take it every day religiously so I don't know why I could not be getting it. I don't have sex that often and when I do, it's always protected and while I'm on the white pills. I decided to not take my brown pills this week to see what would happen. I am going to call my doctor next week to talk about it. Should I be really worried about it?