"i have absolutely loved being on yaz! i have taken every kind of birth control you can think of, and had terrible side effects. i have tried at least 5 different kinds of pills, the shot, an iud. ( i&#039;m also allergic to latex so yay for me). all gave me terrible mood swings, weight gain, and acne. although, gaining weight when you only weigh 103 pounds shouldn&#039;t be an issue. it still bothered me enough to make me stop taking other things. with yaz i had none of these side effects and felt better than before. "