Aiyah, jangan worry sangat lah, 1.584kg at 28 weeks is memang on the bigger side tapi bukan sangat alarming, and honestly susu banyak bukan je yang contribute, genetic dan metabolism baby jugak main peranan. A few of my mum friends dapat feedback similar and doktor cakap maintain healthy diet je, kurang munch on sugary stuff and fried food, then pantau je weight gain progress at next scan. Best la check with your doctor pasal specific diet tips for your situation, sebab setiap pregnancy lain-lain.