Clinical Validation of the Blood Pressure Measuring Device Withings BPM Pro 2 in Pregnancy and Pre-Eclampsia

Inclusion Criteria: * Patient older than 18 years; * Known pregnancy, in second or third trimester of pregnancy ( \> 3 months); * Patient normotensive, hypertensive or in preeclampsia; * Patient who signed the informed consent form; * Patient followed-up at site (in-patient or out-patient); * Patient with arm circumference between 22 cm and 42 cm. Exclusion Criteria: * Patient unable to give a consent or understand properly protocol information; * Patient suffering from arrhythmia; * Patient with poor quality of Korotkov sounds; * Patient for whom K5 sounds are absent; * Patient wearing an implantable electric medical device (pacemaker,…); * Patient with both upper arms suffering from open wound and/or damaged skin.