DD is just turned 9 months. She can roll from tummy to back but not the other way. She can reach forward for a toy out of reach and get herself almost into a crawling position (foot sometimes tucked under her bottom) and that's it. She isn't crawling or army crawling, she isn't pulling up and she doesn't like bear weight on her legs for long, maybe a few seconds while standing on my knees and holding my hands. My first baby was crawling by this stage, standing holding onto something and pulling up. Starting to get worried and thinking I need to contact HV to get her referred for physio?