Question... (Sorry so long)

Ok, so I've been married a little over 2 years to the best man in the world. He works very hard and Loves harder. I'm going to turn 32 in July, and he just turned 28 in January. Everyone keeps telling me that I have plenty of time to worry about babies and all that. I know he is scared to have one, but how do I let him know that it's ok to be scared and that we need to start trying... Since who knows how long it could take... How have some of you handled a situation like this? Any help y'all can give me would be greatly appreciated.