Do you have a grocery store or drug store where you can check your own bp? It could be you have "white coat syndrome" where you get anxious and that rasies it. It may be lower if you do it yourself at the drug store.
Does it show it lower when you are at home? Good idea to bring it to the dr. I had to have Steve check mine a couple of times a day when I was preggo with Andrew. (he's also an EMT). Luckily, this time I've stayed low.
I hope your BP goes down. That would be awful to have to deal with from now until the baby is term. A New Years baby is so exciting though. I can't wait to hear about your ultrasound. Congrats again Tracie!!! You make the cutest little ones!