Ay mama, that's a valid concern talaga, laki ng difference kung maliit ang baby compared sa expected size for gestational age. Definitely follow up with your OB about this dahil kailangan ninyong i-monitor closely kung may growth restriction or other factors affecting baby, and they might recommend more frequent ultrasounds or other checks depending on what they find. A few of us moms have gone through similar situations, at ang key talaga is staying in close touch with your doctor para ma-address agad kung may intervention needed, whether it's dietary adjustments, rest, or closer monitoring pa lang. Wag mag-stress sobra kasi that doesn't help either, pero take this seriously at i-follow ang advice ng OB mo. Rooting for you and baby!