i’m seeing nothing but babies standing hold on to things and little chunky butts so adorable! but my LO is 7 1/2 months and still not doing any of that.. she’s on the tiny side she’s 13lbs 8oz.. she’s gaining about a pound every month so she has her own curve.. she is breastfed.. eating every 2 hours. she’s content after meals so i’m confused. is she just behind? she doesn’t seem as advanced as babies her age right now.. she can sit unsupported and she’s been moving around a lot on the floor not quite crawling but she can turn directions and stuff.