Almost 9 month old won't eat food

My LO only wants breastmilk. She ate purees for a little bit on and off but lately refuses them, even ones she used to like. I've tried giving her little pieces of what we're eating but she has no interest in that either. I've tried thickening up the purees with oatmeal and putting a clump on her plate to feed herself but she doesn't want it either.

Not sure what to do...

I'm going to ask her pedi at her 9 month check up but that's not for a few more weeks.

Thoughts? Suggestions?

TIA!