My first child didn't sit up till almost 8 months and my second does some Supported sitting at 6 months now Ever kid is different As long as the doctors not worried about it I wouldn't worry yet
@Rosie thank you for the comment, i probably will be started solids soon as she turned 6 months on the 24th
@Tabby yeah for sure every baby is different and health visitors arent worried she tries pulling herself up and stuff and shes meeting other milestones
My babies birthday was the 17th and he is also the same. I started solids though as he is showing a lot of interest and feeding himself