Dear girls, good day! I have such a question for you: my son is not cr…

Dear girls, good day! I have such a question for you: my son is not crawling at 9.5 months. He moves like a platypus or a wounded partisan. He literally just started sitting and standing on his own support, dances if he hears a familiar melody or something we sing with my husband, gives and takes toys. He gets onto all fours but only briefly, for about 10 seconds and falls on his belly. He crawls and all the effort goes towards his hands. February 13th we go for an in-person checkup to see a neurologist. We were told before that every child has its own time when it will sit/walk/talk. I'm