"i&#039;ve been on trinessa for a year now i&#039;ve never experienced any weight gain or nausea also it&#039;s done a good job preventing pregnancy for me. what i like most about it is out of the 10 different birth controls i&#039;ve tried trinessa has kept my skin the clearest. i&#039;ve had no bad experience with trinessa i do have slight mood swings here and there but nothing too extreme."