- LMP (Last Menstrual Period): tanggal haid terakhir - EDD (Estimated Due Date): perkiraan tanggal lahir - GA (Gestational Age): usia kehamilan - CRL (Crown-Rump Length): panjang janin - BPD (Biparietal Diameter): diameter kepala janin - HC (Head Circumference): lingkar kepala janin - AC (Abdominal Circumference): lingkar perut janin - FL (Femur Length): panjang tulang paha janin