M.P.
What is your hurry? He will stand when he is able to and wants to. THere is nothing at all to be concerned about. All babies do things at different rates. My son stood at 9 months and didn't walk til almost 16 months. My daughter didn't crawl til 12 months but then stood and walked by 15 months. You just never know when they decide to do something. Leave him alone and let him develop at his own pace!