Wondering if LO will ever sit up. I know they say by 6 months they should be doing it but I wonder if she's going to sit before crawling...because she's always throwing herself backwards when she's in a sitting position. I'm afraid to leave her on her own sitting because she does this. She likes to STAND and JUMP lol She would stand on us or in her jumperoo and jump for days if we let her...and she should have the strength for sitting...but she's not doing it yet. She just figured out last night that she can roll from front to back (she started rolling this way but once she learned she could roll from back to front she forgot how to do it the other way). What do you do about LOs that like the throw themselves backwards in regards to sitting?