Inclusion Criteria:  Informed Consent as documented by signature GDM diagnosis between 24 0/7- 28 0/7 weeks of pregnancy by a 75g oral glucose test (oGTT) Maternal age of 18 to 45 years, Singleton gestation Gestational age ≥ 24 0/7 weeks and <32 0/7 weeks at enrollment.  Exclusion Criteria:  Known hypersensitivity or allergy to the sensor Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders of the participant Participation in another study with investigational drug or product within the 30 days preceding and during the present study Maternal age < 18 years, Multi-fetal gestations, Known fetal structural or chromosomal anomalies Chronic use of medications associated with hyperglycemia (steroids) Planned preterm delivery Overt diabetes mellitus type 1 or 2 HbA1c by study entry > 6.5% History of bariatric surgery or other surgeries that induce malabsorption Fetal growth restriction by study entry