I was EXACTLY like this with DD3. I put it down to the same thing - DD2 was born only 17 months earlier and the labour was very fresh in my mind. When the day came, I was so calm and in control, it turned out to be the best labour & birth of them all. Huge hugs. I hope you are able to relax a bit and enjoy the remainder of your pregnancy and somewhat look forward to the impending birthing day