One of the biggest problems with this technique is that you never know if it is going to work on you. Everybody is different. Every women hormone levels are different. You most likely will get the cons without ever getting the pros. If you noticed one of the main cons is fluid retention. That is exactly what you are looking for to make your breasts larger. Its just like creatine for body builders your muscles are not actually bigger. They are just full of water.
Most birth control will give you this effect. But please contact your doctor and let them know your intentions beforehand. Make sure your body is ready for that kind of hormonal shock. To end it all if you are only considering birth control to enlarge your breasts, there are many different non hormonal techniques you can use to get away from using this technique. I personally would not recommend it for any women it is unnatural and unhealthy. There are so many better ways to do things, definitely more expensive, yes but better ways none the less. breast augmentation has been around for a long time now, they are getting less and less expensive it is a much safer alternative if you must get that larger breast size you have been looking so intently for.
Augmentation is the only safe way to make your breast size significantly larger. the amount of growth your going to eventually end up getting from birth control is a half cup to possibly ( if your lucky) a cup size. It is most definitely not worth the acne and mood swings if you ask me. So if I was going to give any advice at all. it would have to be to do your research ,figure out what works best for you and keep in contact with your physician. Or save a little cash and do some research and find out what reputable augmentation doctors are near you. Even better live life the way it was intended don't change you appearance to suit anybody's needs. If you’re going to go larger do it for yourself and nobody else. Stay positive and stay confident. And the heads will turn. Life is too short to worry about petty things like Beauty and popularity. Stay up and stay healthy.