Welcome to HCM,
You are pregnant and if your Blood pressure readings are high >140/90 mm of Hg, in two reading at different time you should be watchful and reduce salt intake and check for urine protein >300 mg protein in 24 hours urine sample is pre- eclampsia so please follow with your Gynecologist for Gestational Hypertension
and if required anti hypertensive drugs may be prescribed to you like Beta blocker
( Labetolol) and there are few other drugs.
If by any chance you smoke please stop completely.
In the mean time take rest reduce stress
if any, and some preventive drugs like low dose of aspirin
may be given with consultation of treating Gynecologist.
There is no need to worry but you should visit your doctor for monitoring as asked by your doctor.
Please take care