birth control
"I took Ortho Tri-Cyclen Lo for a year, during which I was having intercourse very regularly. It was the only form of birth control I used, and although I did miss a few pills, my menstrual cycle was always on time, although I often lightly bled during the third week as well. It had the added benefit of clearing up all of my acne, when previously I would get zits on my chin, forehead, and back. The side effects were mild; a nauseous feeling when I first woke up, and constant vaginal dryness."