Just left my OB office after a routine check up. When I first got there, the nurse said my blood pressure was a little high at 130/80 and that she would come back in after a little while to take it again. Well she never did. My OB didn't mention it and baby's heartbeat was a strong 161. I'm 17 weeks and haven't gained any weight yet. I assume that, since the nurse didn't come back and my doctor didn't bring it up, I'm okay...but what do you think it means? What could be the cause?