is it really preeclampsia?

So I will be 35 weeks tomorrow and since about 30 weeks I have been going to NST testing twice a week to monitor my BP because at my doctors appt I had 2 high readings. I ended up having elevated protein in my urine but my BP has not been that high during NST's. About two weeks ago I had a somewhat high reading. Then last week I went to my doctors appt and it was 145/71 or somewhere close to that so they went ahead and just said I'm considered preeclamptic now and will be induced at 37 weeks. I don't really have any other pre-e symptoms like headaches or anything like that. My feet swell tons but my face doesn't. So now, of course I've been doing a lot of research and googling and now I'm just scared that I don't really have pre-e but will be induced anyway. Do they do this just to be cautious? I know that with BP it can literally change one day to the next but I'm just really nervous to be induced at 37 weeks..