"i am 16 and this was my first method of birth control. i wasn&#039;t good at taking pills so i chose this. in the first couple weeks my breasts felt tender. i only felt nauseous one time. i&#039;ve had some headaches but nothing too bad. i also got more acne but now that i&#039;m at the end of 3 months it seems like its gone away. i also fear that it will make me gain weight because i have gained 2-4 pounds since then. but i think my breasts got bigger."