INS and diabetes mellitus: Many women with diabetes do not test at the recommended frequency, which may be associated with poor pregnancy outcomes18; SMBG results often fail to detect trends or short-lived glycemic excursions.19–21 Continuous glucose monitoring (CGM) addresses many of these shortcomings, as current CGM systems can be used for insulin dosing decisions, do not require routine calibration, can display data locally or remotely, and can automatically alert users (or their remote followers) to abnormal glucose values or trends.