Am I ready???

I just turned 26 years old. And it's a bit scary. Well, a lot scary! Should I do this or that? Should I go here or there? Who, when WHY do this or that??????

I have a couple of friends that are pregnant. One is older than me and one is younger than me. And I'm so happy for them! They have their lives changing and it's their wonderful desicion. But... then all of that makes me question myself in regards to starting a family soon, since I just about in the middle of their ages and from what I've heard, my fertility is going down hill. I know that Rick and I said we would be married for 5 years before we would start. And that still sounds like a good idea. But I am always thinking about the ways it could change. How my life would be better or worse if I wait more than 5 years, and vice versa, if I don't wait the full 5 years and want it sooner. Husband and I have talked about it, pros and cons... I think we'll have to have another talk when he gets back from his deployment.