Not crawling at 11 months

[Peg12]

Hello, my DC is over 11 months and still not crawling. She tried to but can get her legs into the crawling position. Should I be concerned? She is also not bum shuffling.
TIA

To add she doesn't pull to stand either

Have you started a different thread on this @Peg12? I think I advised getting your HV to do the 12 month Ages & Stages?