Hello our baby is 8 months old and he is rolling, grabbing, holding thing, picking small small objects also. if he we make him sit. he will sit. if we make him stand with support, he does. but he is not crawling. Over bedsheet he will pull the bedsheet towards him but not he won't move forward and on the floor he is rotating, he can go backwards, but he is not moving forward. and he is not scrolling , if he holds our fingers, he pull his body forward. but he is not crawling, he is not lifting body completely. is it fine or what is the correct milestone? please suggest us.