Salam mama! I understand la why you're worried, hormones + pregnancy anxiety is such a combo. Honestly, measurements like these really need proper context from your doctor because timing, angle, baby position semua boleh affect the reading, so please don't stress alone, book a follow-up with your OB and bring all your scan results together so dia boleh explain properly what it means for your baby specifically. A few of my mum friends have had similar situations where the measurement changed slightly between scans, tapi the doctor reassured them it was still within normal range or just technical differences, you'll feel so much better once the specialist explains it to you face-to-face. Jangan google terlalu banyak (I know easier said than done!), focus on that appointment with your doctor first, okay?