When DH & I got married, we both thought we would never want to be parents. We waited a few years and then changed our minds. When we started I was 32, I had 3 miscarriages in 2 years and the Drs said I shouldn't try anymore; I would never be able to carry a child to term. Then, Oooops, I got pg with DS, at 36. He was born healthy and beautiful, but it was a very rough 9 months. I think a woman's body is much more flexible and forgiving when it is younger.
Looking back, I wish I had started much younger and KEPT trying, despite the Drs warnings. It is a huge responsibility to have kids, but the best thing I've ever done!! As long as you and your DH are on the same page about being parents' GO FOR IT! Don't base your decision on seeing other people's kids. When you have your own, (or adopt) it is a COMPLETELY different feeling. Good luck.
P.S. My biline says: Your heart understands what your head cannot yet conceive; trust your heart. In this instance, I truly believe it. TRUST YOUR HEART!