Trimester-specific glycemic variability and fetal growth. (a) First trimester glycemic variability and change in EFW%ile during pregnancy, (b) Second trimester glycemic variability and change in EFW%ile during pregnancy, (c) Third trimester glycemic variability and change in EFW%ile during pregnancy, (d) First trimester glycemic variability and change in AC%ile during pregnancy, (e) Second trimester glycemic variability and change in AC%ile during pregnancy, (f) Third trimester glycemic variability and change in AC%ile during pregnancy.