Blood pressure

So I haven’t been having any problems with my blood pressure . I’ve been seeing my Dr every

2 weeks for the past few weeks and am currently 35 weeks pregnant . Today when I went , my blood pressure was slightly elevated . My Dr did some blood work and wants me to come back next week to re check it . I normally go to my Dr appointments in the mornings, but today it was in the afternoon when I’ve been moving all day and was hustling across the parking lot to my appointment because I was running late . I’m hoping that has something to do with it . I had no protein in my urine and have been having a healthy and happy pregnancy , so I’m hoping that this was just a one time thing . I haven’t had any headaches or any symptoms other than it being just slightly elevated today. However, I have had some anxiety about my blood pressure my whole pregnancy . My job is also stressful. It’s like I had this feeling that it would get elevated, but didn’t know when . A good friend of mine had horrible preeclampsia and I think that scared me for good. Anyone else have just one time where your blood pressure was slightly elevated and it was fine the next time ?