I don't think you are being unrealistic - of course this is coming from someone who is yet to make it to child birth

I have heard a number of lovely stories in ihere in the birth section about natural births and I think they are totally inspiring. Maybe everytime someone shuns your goal to have a natural birth you just read a story (or the same one) for inspiration and to reinforce your belief that you CAN do it.

Best of luck

Nae x