Hi,
I don't know the whole situation, but I think I would find another doctor or even a midwife. Midwives have to practice under doctors, so if you really couldn't deliver naturally, then a doctor could step in.
I would ask your doctor what his c- section percentage is. If it seems high, it sounds like he does them because they are quicker. I feel women end up getting C-sections a lot of times, because the doctor is inpatient.
When I was 36 weeks pregnant I switch to the midwives in my practice, because I wanted to do a natural birth and my doctor didn't really seem opened to talk about it with me. The night I went into labor he was the doctor on call. He slept pretty much the whole time, from what I heard from my midwife. My midwife stayed with me for the whole 5 hours.
I was really tired from being up all night and it took me about 1 and half hours to push and a position that was not on my back. I couldn't even imagine if a doctor made me deliver on my back what would of happen (Delivering on your back is probably the worst positions to deliver). I was in so much pain laying on my back. Did your doctor try do deliver you in different positions? I heard that squatting can open your pelvic area either 23% or 28% more than laying on your back.
There are many women who go on to deliver naturally after a C-section. I know doctors sometimes don't like to take these women on, but there are awesome midwives that do VBAC. I have a friend doing it right now. It is your body, not the doctors, and if you really feel you want to have a natural birth then I would try. I highly recommend reading the book "Birthing from Within." It really changed my views on natural birth and I am so glad I did it. It has a lot of stories of women who had C-sections the first time and then go on to have natural births. If you are interested in some awesome midwives, try calling Woman Care Center and talking with one of them. Midwife Blair Conger is awesome. I believe they have 3 midwives there ###-###-####). Even if you don't end up switching I would just call to get some advice and see what they recommend. I wish you well:) How far along are you?
Jen