Wow, do we have the same life? My dd was born when I was 20, when #2 comes along I will be 24. We have already decided on a 3rd though, and will probably continue with the same spacing, our issue is either to stop at 3 or 4 based on the same reasoning. My parents had their children young as well, we were all out of the house by time they were 45, they are loving middle age as a couple instead of a family. I'll be curious to see what others say.