Is it worth taking birth control pills to clear up my skin?

i heard they can cause you to get bloated and gain weight. i really only want to take them to clear my skin as i get break-outs now and then. I was prescribed tri-cyclin-low by my doctor a few months ago but haven't started taking it yet. I am a bit wary of potential side effects. I spend a lot of time working out and just lost 20lbs i don't want the pills to make me gain any weight back. or to feel bloated. Has anyone taken that kind? did you find them alright? would it be worth it to take them?