Anak, please go see your OB right away or go to the hospital para ma-check properly, sudden BP changes malapit sa due date need to be monitored closely, at deserve mo peace of mind!
Since your OB said to monitor lang muna, follow that closely, check your BP regularly if pwede, and go back agad kung may headaches, blurred vision, or unusual swelling. A few of us moms worried din sa ganitong situation, and the doctors reassured us once they had the full picture. Rest as much as you can, and don't stress yourself pa, easier said than done, I know! You're so close na, at siguradong alam ng OB mo kung ano ang best para sa iyo at baby.