My baby girl is 8 months old now but she doesn’t crawl on her knees and also have not got her tooth yet what i should do?

A. The crawling usually seen between the age of nine months to 11 months in a general standard when we talk about so it is normal so wait and second teeth can be seen first one when we talk about can be seen between the age of 3 to 17 months so right now there is no delay so you can wait