5 month baby milestones

Ellie • Engaged to my soulmate💏and newly a SAHM to a 8 year old boy 👶🏽 4 year old girl and my newest baby girl born 1/25/18👶🏽👶🏽🎀🎀 💕

My baby girl is 5 months and a week and she loves food and is super affectionate and controls her head and neck and can roll front to back and back to front..

but she can’t sit. Like if u sit her in the middle of a boppy she gets too excited and either flings herself back or falls sideways lol

By this age my second was almost crawling and walking by 9 Months.

I’m not really worried cause I know all kids are different, I’m just curious where other baby’s are around this age..