anvi is 13 months old but her teething and crawling not yet starting what should I do???

A. A child can have its first teeth by the age of 17 months you still have four months need not worry about it if you do not see that then you can consult an orthodontic but as of not a problem and if your child is not even crawling but if your child is walking with support or independently then there is no need of crawling