May baby is 6 months old going 7 months next week pero until now hindi niya pa kaya umupo mag isa

7 months baby ko hindi pa kaya umupo mag isa .and 6 months na siya natuto dumapa .pero normal lng nmn po yun iba2 talaga development ng baby .and 8 months premee baby ko kaya i expected na talaga na delay 1 month