What did I say wrong?

I just got back from Lakewood we went down for a vort. The wife brings up the discussion about having kids, I state my opinion how I dont think either f us can handle it. And how we need to get our act together and start preparing stuff the nught before, if you comer home from work late, and etc. I thought the conversation went pretty well. This conversation took place on the way to the vort. On the eway home she is all of a sudden quite qnd barely talking to me, even as I sit in bed typing this, I say good night she is barely responding, I don't know why, and just wish this would be over. In would venture to say this is one of the worst feelings in the world. Please help.