"so i was originally on junel fe but that was a horror show with all the mood swings, bleeding, acne and just horrible nausea. i lost 11 pounds on that so beware. anyway, once i told my doctor, she prescribed this. the first pack caused some nausea, a small break out and just an odd feeling. once i got that under my belt, i&#039;ve had no problems! i&#039;m on my fourth pack starting today and it&#039;s been great. clear face, light periods, and doesn&#039;t make me gain weight. how ever, i must say around the placebo week, i get so bloated, horrible cramps and headaches...otherwise, it&#039;s been great. so the effectiveness of it, i haven&#039;t gotten pregnant yet, knock on wood. just keep taking the pill at the correct time and you&#039;ll be fine!"