Hi there, Brief answer-Should be concerned. I welcome you to healthcaremagic. The problem of high pressure you gave is little unclear as in what was regular normal blood pressure readings throughout or before pregnancy.This info would have been required to make a correct diagnosis. Hope you are not having any other symptoms like nausea or vomiting,Upper abdominal pain, usually under your ribs on the right side,Sudden weight gain and swelling (edema) — particularly in your face and hands,any visual disturbances.This can be Gestational hypertension,chronic hypertension or pre eclampsia.You should have a urinalysis,complete blood count,serum sodium, potassium, creatinine tests. You should definitely visit your doctor and get diagnosed and if required ,start your anti hypertensive medications as soon as possible.Do not panic. Hope i answered your query.Take care