Hi, Ds (6 half mnths) is not sittin on his own as yet. Just wondering when other babies sit on their own for the first time.. He has been rolling back to front and vice versa for over a mnth, and can get up on all 4s and rock and also doing the pre crawling, but just no sitting.. he can if i support him. WOuld love to know when other little ones sit for the 1st time. ta