is life really different?

Since the wedding day people ask me all the time what married life is like. I have to say that so far there are only a few things that are different from what they were before the wedding. There are a few obvious things like combined bank accounts, calling each other hubby and wifey, and we are a little more conscience of the decisions we make about everything.
Our conversations about having a family and where we should settle down to have a family have become more serious as well. I never understood until now how serious conversations like this really need to be and how much these decisions can change ones life. I said for a long time that I want kids and I want them now. And even now with one friend pregnant and another one is getting ready to start trying, I think to myself, "well how come I am not trying yet?"
I go through moments of being a tiny bit jealous and then moments of thinking "am I really ready to change my life so dramatically?" At this point I really dont know. I dont know if I am ready to interrupt our newlywed life. Is that ok to feel like that?
We have decided that a few things need to happen before kids come along, so it will be a while. We know that if God decides that we need a child sooner that He will provide us with one. But for now I will probably keep flip flopping with my feelings and I will provide as much love as I can for all my "kids" at school.