Don't be scared, many people have wonderful pregnancies with very little discomfort (like me, and I was 35 when I got pregnant). Pain is both a physical and psychological experience, and there are many ways to deal with both through pregnancy and during the birth. You could get some support from a psychologist (through the medicare items) which would assist no end. You might also find an ob/midwife who has worked with many women with a history of anxiety and panic disorders which could help no end.

But please don't be frightened of the pain. And you don't have to be desperate for kids to want to have them - in my case, I couldn't imagine myself at 50 with no children, so logically I had to have them sometime! Now I have had my first, I think it is a wonderful experience that has taught me so much already, including how to relax and go with the flow a lot more in life.

Hope things work out for you!