Inclusion Criteria:  Age > 18 years old. Pregnant women without diabetes. Pregnant women with diabetes (pregestational and gestational) on diet +/- metformin. Dedicated to applying a continuous glucose monitoring (CGM) device.  Exclusion Criteria:  Age below18 years Pregnant women with diabetes on insulin (type 1 and type 2 diabetes) Renal and liver impairment. Adrenal insufficiency Psychiatric diseases.