Norethindrone
"Well I wish I had read these reviews before trying this new birth control. My doctor recommended it to minimize side effects associated with other pills. I got pregnant within months of switching. My doctor said it was because I must've taken a dose at the wrong time. True, I didn't realize there was only a three hour window. This is different than every other type of birth control pill!!!! And this important difference is not highlighted in patient training in my experience. Now I've taken the pill religiously for last two months, and I just found out I am pregnant again! I am devastated. This birth-control is not effective. Beware. Please note that I took Ocella and Ortho Tri-Cyclen for over 22 years before making the switch. I never had any problems. Do not trust this pill!"