Trying for children

Has anyone tried for kids without being 100% sure that they want them?

I LOVE kids but have always said I didn’t want my own because I am worried I’d mess them up.

I’m getting to an age where I wouldn’t want to be any older and get pregnant. My husband and I are considering trying for a few months and seeing what happens. If we get pregnant we would love the baby but if not it would be ok. I worry a bit about getting too old and thinking “what if?”