Hello and welcome,
If you have HB during pregnancy, does not mean that you have it outside of pregnancy. If you have elevated BP before 20 weeks gestation, it is referred to as chronic, even if you don't have it outside of pregnancy (yes, I know, confusing). If you start out with elevated pressures in your first trimester, your risk of developing PE is higher, but it does not mean it needs to happen. This would be called superimposed PE. Only 25% of women who are considered chronics will develop superimposed preeclampsia. Here is a previous thread: on that topic viewtopic.php?f=12&t=45643&p=353968&hilit=superimposed#p353968
The good thing is that your doctor is diligent and takes your BP seriously. Medication might help to get your BP under control and stable, which is important. There are medications that are safe during pregnancy, and the benefit of taking it outweighs the risk of running around with pressures that are too high. Uncontrolled high BP during pregnancy can have health risks for both baby and mom.What has your doctor prescribed?
Unfortunately, alternative methods like diets (low sodium) and similar have not proven to be all that helpful for hypertension during pregnancy. One of my doctors has explained to me that HB during pregnancy is a totally different category of HB than outside of pregnancy. Also, the thresholds (what is considered high) are different.
You might want to take your BP regularly to keep an eye on it. Keeping a log of your readings that you can share with your doctor/nurse will help them to manage your care better (there is a free app for smartphones from which you can directly email your numbers to your doc). Take it a couple times a day (morning/evening) - and not much more often (I know myself that one can go crazy with those machines).
There are some posters here who are chronics and might have some good advice for you. I am sure somebody will stop by and share their wisdom.
Congratulations on your pregnancy.