"zen" pregnancy

So I used the word zen. But really just calmest pregnancy possible is what I would like to strive for from this point possible. Cutting out all negativity as much as possible, distancing myself from "negative Nancy's" etc. of course I know life happens and sometimes we can't control things (lots of times we can't) but we can control how we react to things. I seem to be having issues resting when I should be...for example, I'm so excited my mind just starts going and going. "Is it a boy/or girl? What will I name it? Will he/she be healthy? How will my older children feel? Typical things. I had my older ones in 2004 and 2007 when I was pretty darn young. I didn't even have the Internet t the time. Which was hard as sometimes but could be a good thing. Now we have all sorts of info at any given time lol. Don't get me wrong it's certainly helpful, but I need to turn this curious mind off sometimes! What have you done this pregnancy to stay peaceful?