Ok I am probably looking at a 'won't' rather than a 'can't' but W. was sitting happily by about 4 and a half months, and for the last week or so (now nearly 6 months) every time I try to sit him on the floor, he refuses to bend his legs, or if he does, instanty falls over!
Has anyone else's child 'regressed' like this, or is he trying to tell me something!?
TIA, I am just confused really..