Ooh, sebab dia premature baby, jadi kena adjust age dia dulu, at 4 months, actually baru around 2.5 months corrected age, so reaching for objects usually comes later lagi, maybe around 4-5 months corrected! A few of us with preemie babies went through the same worry, macam semua orang compare dengan full-term babies, so stressful kan. Since other milestones okay and dia boleh tengok, likely fine je, tapi best boleh check dengan pediatrician next visit just for peace of mind, especially confirm corrected age calculation dia correct.