I would start to set things up. Take it slow, and set up what you can handle. Then, when you start to get really close, start washing a few items that you will need immediately after birth. It is scary, I know. I was told I was higher risk of a still born because of my diabetes. I FREAKED out. I go weekly for biophysical u/s's though.
Plus, you are not crazy. It's still hard to believe that I am pregnant!