"i took this shot to be safe, i&#039;m a young teenager that is sexually active. i have big plans for my future, so i decided to take precautions. i was on this shot for 6 months. yes it is indeed very effective. but my body did have some trouble trying to adapt to the medication. i can say i was on my period for a whole month, i got the shot so i can have safe sex, but being on my period for a month kind of ruined the whole purpose. i want to re take it again but i don&#039;t like the side effects i recieve from this shot.. i also lost a lot of weight, not to brag but cute butt vanished into thin air, &amp; not to mention the depression!"