9m old still not crawling

Alicia

Is anyone else's 9m old still not crawling? Mine can go backwards but not forwards.. we practice all the time... she can sit unassisted for hours, she can't sit herself up if she falls down. She doesn't try to pull herself up, she is all around lazy... but I'm not truly worried just yet. I'm guessing she is just a little slower at these last few milestones...

Anyone else going through this also? Or have gone through this..

Thanks in advance