The very first time I used BC pills, they put me on Nordette 28. It was awful, my hair started falling out and I went crazy! It made me really moody. I went back to the doctor and she put me on Ortho-Cyclen and everything got better immediately. Don't worry there are tons of different pills, just let the doctor know if you are having side effects and they will find you the right one. I was also concerned about gaining weight, but it didn't happen.