blood pressure question.

Okay so the past two times I've went to the dr my bottom number on my blood pressure was high I was gonna ask my dr but both times I didn't get to really see him because he had emergencys he needed to get to so my question is is it concerning that my bottom number and heart rate was high? I was calm and hadn't been walking or anything? I'm 27 weeks today it was 118/91 and my heart rate was 99 last time it was 123/96 and my heart rate was 92..could this be signs of pre eclampsia. I asked my nurse and she didn't seem like it was to big of a deal. I guess I'm just worried.