Hi Lauren84,
I'm in a similar situation to you, waiting to test. I am also having horrid highs particularly in the mornings. I seem to remember. It from my first pregnancy four years ago. I know what you mean about worrying that it's doing damage but I think as long as you act on it and get it down it should be ok, it's the prolonged highs that do the damage. Welcome to the blood sugar roller coaster you will be on it for the next 9 months if you are pregnant! Fingers crossed for us both xx