Norethindrone
"I've been taking this drug for about two years and I have mixed feelings about it. I started it because I had 10 day+ long periods with severe cramps lasting even longer than that. I started on the lowest dose and had CONSTANT spotting for a long time. Told the doc and she moved me up a dose. This is where the mixed feelings come in... I have had perhaps two days total of bleeding (only when I forgot to take the pill) in the past two years but I've also experienced significant weight gain, acne, and mood changes, and it's getting old. At this point I'm considering switching to a different bc method. Unfortunately, I can't take anything with estrogen! (Migraine with aura)"