Yes, adult acne definately sucks--I'm 32. I am much better now, and grateful for it, but for 2 and a half years it was rough.
Usually, the people whom get adult acne had it when they were younger--they don't know why. Also, women get it more frequently than men--probably hormones. It is also more difficult to get under control.
Are you using topicals in addition to BCP?
May you have enough happiness to make you sweet, enough trials to keep you strong, enough sorrow to keep you human, and enough hope to keep you happy.