Don't give up...my husband and i have 4 children(all cesarean); started our family when i was 29. I got pregnant(after a miscarriage) with our 3rd child when I was 35. Nicholas was born June 2006. 4 months later,we were expecting again, with our 4th child John Paul!(I was 36 yrs old) He was born in Aug 2007...
Don't let the medical profession scare you/tell you that magically, when every women turns 35, she will have difficulty getting pregnant, or that the 'odds' of having a special-needs child skyrocket...thats BULL@3IT. YES, fertility peaks, generally, at a younger age, and YES, there is an increased risk in problems, but not so much that it should dissuade people from trying for life!!!
We have some close friends that just had their 7th child, and she is 41...
If you are not sure when your most fertile time of the month is (it may not be in the exact 'middle' of your cycle; mine isn't), I would highly recommend studying Natural Family Planning...it helps identify, by physiological changes in a women's body, when her best chances of conceiving are...typically, people use NFP to avoid getting pregnant (NFP is 99% effective, just like birth control pills, but you aren't pumping your body full of chemicals!)
Good luck and God bless!