Alamak, takut betul kan masa dengar macam tu! A few of my mum friends jugak pernah alami size tak match, and honestly banyak sebab boleh jadi, sometimes dating bole salah, or baby's growth pattern just different from the usual curve, bukan necessarily kencing manis je pun. Sebab kencing manis boleh affect growth tapi usually doktor akan monitor closely, so yang bagus tu doktor tu dah arrange follow-up 2 minggu lagi untuk tengok how baby's growing, that's actually normal procedure they do. Since you ada kencing manis, memang important to keep your glucose levels steady during pregnancy sebab it does matter for baby, so just make sure follow the advice your doctor gave you and ask them directly about your diabetes and how it might affect the dating, sebab they know your full medical history better. Jangan stress dulu, wait for the next scan, and if ada worry lagi after that, bagus discuss dengan doktor pasal the connection between your kencing manis and the baby's growth.