During pregnancy I think they go by the old school numbers so if it don't go higher than I think 140/80 then they probably won't do anything at the end mine did go up about there but if they suspect anything they will do test for precaution.
My visit 2 weeks ago my blood pressure was about 126/80 and then last week was 110/72. So far no protein in my urine, but your BP can depend on your mood. My BP is always much lower at appointments where I feel more relaxed. I went for an allergy test during my first trimester and they took my BP and it was 136/80 and I was freaking out and went the next day to see my doctor, but it was only high because I was late for the appointment so I was running and stressing. Regular exercise such as walking can help keep your blood pressure in check.