11 month old not crawling or talking.

So I know I shouldn’t compare but it is seriously so hard. My almost 11 month old won’t crawl/walk or talk. He will obviously have his 1 year appointment next month but should I bring him in sooner? Should I super concerned? He does try to crawl and he can walk if I hold his hands. He just seems to not care. He is perfectly content just sitting on the floor playing. Thank you for any info or tips.