Pregnant and can't sleep!!

So it is exactly 4:05 am on my laptop here and I've not been able to get much sleep. This has been happening for a while now.Tonight though, takes the cake. Between feeling like the size of a house (I'm just hitting 8 months) heartburn and general anxiety (appointments to attend, things to do, nursery to sort etc) I am resembling something from zombie apocalypse. I would normally blame my tea addiction, but I figured that it cant be that, since I've been on decaf for the past 8 months.
  I'm not sure what the point is to this post exactly, possibly just an excuse to moan. I thinkI will attempt moving back between the covers now, wish me luck :)