you can assist your baby para ma-reach ang milestone. sa baby ko, i started paupuin si baby sa inflatable seat with back support starting 5 months. eventually, hindi na sia sumasandal. then nung hindi na sia sumasandal, pinaupo ko sia sa kama with hand support nman nia until kaya na nia. 6-7months- crawl 8-9month- sit on her own 10-11 months- walk by herself