"i am a 17 year old, very petite. i started out with my first birth control yaz. very bad experience, i was sick for a whole week straight with heavy bleeding and nausea. then i switched to this and it&#039;s been great! i&#039;m on my 3rd pack and my only complaint is that i had really heavy bleeding last month and cramps :/ but other than that no side effects at all, and my breasts got bigger. hopefully this month will be light if anything! i have a few friends who are thin like me who love lo loestrin fe."