Wa'alaikumassalam sis! 9 bulan baru 1 hari lagi so give it time lah, setiap baby develop at their own pace, a few of my mum friends pun babies mereka jalan lambat but semua fine je. Since he's active dalam walker and berlari tu, dia ada kekuatan, maybe just need more tummy time and floor play without walker untuk encourage dia merangkak naturally? Tapi kalau you feel something's off, better check dengan pediatrician just to be sure and get professional advice, they can assess properly and give you peace of mind Jangan worry sangat, first baby memang ada pressure sikit but you're doing great!
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