The aim of the study is to assess the accuracy of the automatic oscillometric BP measuring device at the brachial level, the 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.