Wa'alaikummussalam sis! Jangan risau sangat, marching due date doesn't mean sure lahir on that day, ramai je yang terlepas sampai 40+ weeks, especially first time moms. A few of my mum friends had 3kg+ babies and stayed pregnant sampai 40, 41 weeks, so your baby is healthy size je. Doc dah bagi contingency date tu just in case, tapi honestly kalau scan okay dan you're feeling alright, biasanya jalan je dulu naturally. Try jalan-jalan, makan dates, relaxing aja dulu, labour boleh datang anytime! How are you feeling otherwise?