What to think about a childless marriage?

[The Loving Addict]

My husband and I have been married for nearly two years. We both went into the relationship agreeing that we don't want children for various reasons. I am 22 and he is 24. I feel we are too young to have kids right now, but we are open to the fact that our feelings might change in 3-5 years so don't want to do anything permanent. To be honest, I'm scared of children and I'm scared of the negative impacts a child will have on our marriage. We are so happy just making each other happy, and neither one of us yearns for a child to be thrown in the mix.

I believe we would both be good parents. He's a wonderful patient man (more patient than me) and there is nothing I wouldn't do to make him happy. He makes me feel like the most important thing in his life and always makes me feel loved and cherished.

Does anyone have any insight on a childless marriage? What sort of things should we expect? Fear? Enjoy? Do you think we'll change our minds later?

Thanks for your advice in advance...