To reduce risks of obstetric and neonatal complications, pregnant women with type 1 diabetes (T1D) are advised to keep glucose between 3.5 and 7.8 mmol/L [63–140.4 mg/dL] for ≥70% of the time.1 Women are acutely aware of the risks T1D poses to their babies and highly motivated to address them.2,3 However, pregnancy-related physiological changes (e.g., nausea and vomiting, variations in insulin sensitivity and/or resistance) and limitations of subcutaneous insulin regimens can make attainment of pregnancy glucose targets extremely challenging.4,5. Here, INS is linked to type 1 diabetes mellitus.