This isn't really answering the question but still on the topic, I had high BP prior to being preg and were on meds for it. My OB has said I can obviously expect it will go up further throughout the pregnancy. He has said he will be aiming to get me to 38 wks, and then induce me. He said there is no advantage in me going any longer, the baby is developed enough at that point.

Obviously that plan could change dependant upon how my blood pressure is going.