menstrual disorders
"I'm on my second month of taking Loestrin, the first month was just fine, although I've had migraine headaches since taking this pill. Now on my second month I've had spotting, light breakthrough bleeding, and cramps on and off. My doctor told me to stick with it for another month. My periods are much lighter and fewer days which is why I started taking this birth control pill to keep from becoming anemic again."