You can use some medication under the guidance of your doctor
Some blood pressure medications are considered safe to use during pregnancy, but angiotensin-converting enzyme (ACE) inhibitors, angiotensin II receptor blockers and renin inhibitors are generally avoided during pregnancy.
Treatment is important, however. High blood pressure puts you at risk of heart attack, stroke and other major complications. And it can be dangerous for your baby.
Don't stop taking the medication or adjust the dose on your own. You should Take the medication exactly as prescribed.