birth control
"took this for 1 month and experienced no major mood swings or nausea.  However, immediately, I got CANKER sores (I never get these) and pimples (when my complexion is generally clear).  Then I had light spotting for a few days about 1.5 weeks prior to when my period should have came - then it was followed by heavy breakthrough bleeding.  Can't recommend this if you're trying to regulate your period.  Will be switching to a different brand."