Patients with essential hypertension can become pregnant, so women with hypertension should not worry too much, as long as they keep their blood pressure within the ideal range and have no other serious complications, it will not affect normal pregnancy. However, it is recommended for women who are planning a pregnancy to change their antihypertensive medication to one that has less effect on the fetus six months before the planned pregnancy to avoid any effect on the fetus. Changing the medication taken should be consistent with the type of medication used during pregnancy, which will help with sequential dosing and facilitate better blood pressure control. However, if the systolic blood pressure remains above 150 mm Hg and/or diastolic blood pressure above 100 mm Hg after reasonable lifestyle interventions and antihypertensive medication, or if the patient has mild hypertension but is accompanied by proteinuria, then pregnancy planning should be put on hold. So what kind of medications are appropriate for women who are planning to become pregnant? According to the 2017 guidelines related to hypertension, the main mainstream medications recommended for use during pregnancy are methyldopa, labetalol, or nifedipine. Methyldopa is the first-line drug of choice, and its adverse effects are mainly postural hypotension and sodium retention, etc. There are no reports of maternal and infant adverse events caused by methyldopa, so it is the drug of choice for pregnancy with hypertension. In addition to methyldopa, labetalol is also one of the first-line drugs for the treatment of hypertension in pregnancy. However, about 95% of labetalol is metabolized by the liver, and it is recommended to use this drug with caution if a pregnant woman has combined liver disease. Nifedipine, during use, should be avoided sublingually as much as possible. Nifedipine tablets, have been reported to cause hypotensive episodes and intrauterine distress in pregnant women. All three of these drugs can be taken by women who are planning a pregnancy. In addition to the safety of oral medications, women with essential hypertension should also pay attention to lifestyle interventions, such as weight loss if they are obese or overweight, regular aerobic exercise, relaxation, limiting sodium intake to less than six grams per day, and eating more fresh fruits and vegetables, which are rich in magnesium and potassium. Rich in magnesium as well as potassium, which helps to further reduce blood pressure.