I agree with pomegranate, it is probably a good idea for you to seek psychiatric help. Meds are only one part of depression treatment for many people, especially if you've been the victim of something has horrible as rape in the past.

Ask your doctor for a referal, and if she doesn't believe that you need that, I would personally see another doctor. There are so many things to be done about depression, and sometimes it takes a combination of treatments -- physical and psychological -- to pull through it.