Depo-Provera Contraceptive and needles

I have been on Depo for about 7 years. I never had a problem, I never had any periods at all. When i went off I became pregnant in 3 months. I have decided that I will never go back on it just because everyone has warned me about the horrible bone decay. I am awaiting a bone density test in March and I am very nervous. It took this long to actually start listening to what people were telling me about this drug.especially my doctor. I tried the pill 2 months ago (tri-cyclon_ for the 1st time and it is the worst thing I have ever done. I am depressed beyond words. I have no desire for sex no desire to eat, or to be social. this is where brown stuff hits the fan. I am done with needles,pills and any other thing that put chemicals in the body. Condoms, I have no choice. I am sick sick of being mentally and physically sick, on account of putting crap in my body.