Hi, my girlfriend and I are both 19 years old and we have been dating for about 2 years. We decided it'd be smart if she got on birth control just because it's not worth messing everything up with a pregnancy at our age. She was taking ortho tri cyclen and everything seemed fine, but her doctor switched her over to Yaz and ever since then it's been horrible. She's always got very bad mood swings, and her sex drive is ZERO and it hurts when we do it. I figured I'd ask on here because it's hurting our relationship and I love her and don't want anything to come between us. Something needs to change quick because it's not worth fighting over this..