How far along are you? If you're fairly late in your pregnancy, especially the third trimester, high blood pressure could be serious. It's the number one factor that determines preeclampsia (pregnancy-induced hypertension), which is a potentially life-threatening condition. Ask your doctor to check for proteinuria (protein in the urine), another symptom of preeclampsia. However, high blood pressure is serious at any time, not only during pregnancy, because it greatly increases the chances of heart attack and stroke. What was your BP, by the way? If it was pure hypertension (140/90), definitely try to rest as much as possible. The advice about the legs is essential, because it helps prevent thromboli and emboli (blood clots that travel and block arteries), and as the legs have to move their deoxygenated blood against gravity back to the heart, they are the most common spots for blood clots during extended bed rest. Above all, try to eat lots of fruits and vegetables, avoid excess salt, and exercise according to your doctor's restrictions and advice. Good luck, God bless, and feel better!