birth control
"I've been taking this for a while, and as a fairly small lady, the side effects can be a little much at times. Sometimes it causes really nasty headaches behind my eyes due to my contact lenses. Also, I tend to get stomach pains that happen at random times throughout my cycle. However, it has kept my cycle very regular, and reduced my period from seven days to four. Great if you have irregular cycles, but the side effects can be a tad overpowering if you're not prepared."