Teeth and Height of 1 year old. Ok?

My daughter is 12 months 2 week as of today..She is completely toothless..She bites while feeding, chews on to food and anything she is attracted to from toys to clothes...Drools as well..But when I feel her gums I don't see anything... Is this normal? I am worried... I am not comparing, but few of her cousins who are younger by 2 3 months to her have got 4 to 8 teeth, so I am concerned... She is now 9kgs while her birth weight was 2.6kgs..Is she doing OK? She is on solids, 3 meals and 1 to 2 snacks, on family pot minus salt and sugar and is breastfed on demand throughout the day. Please guide me regarding her teething and weight.. she is an active baby and I don't want to force-feed her but a word from experts will console me that I am on the right way and I will ignore all the no tooth till now / she looks so lean comments forever...