Thinking of having a baby

My SO and I have been together for 3 years off and on. Now we're confident that we are stronger together. We have talk about have a baby a few times but we're thinking about trying to Conceive this winter to have a summer baby. The thing is, I want to have more time with just him and I before we have a child. More time to make sure we are solid and strong. How should I tell him what I'm feeling without making him think I don't want to have a baby?