GIRLS ONLY! Private Girl Stuff?

So...im 13 and i haven't gotten my period however. is that unusual?? i think a bunch of my friends own. im also really flat chested. no!
i'm 16 (i turned december 5th), and i didn't get my time of year untill JULY 4TH 2007, so i was 15 years ripened. my twin sister got hers exactly a month subsequently. my boobs are growing slowly. it's not problem. ask your mom when she got hers. my unbroken family get ours late, but as soon as they get 20, BAM! we're loaded!
but basically, don't verbs!
oh and u seriously don't want it
i remember i used to say that i looked-for it SOOOOOOOOOOOOO bad
consequently when i got it i HATED it
i cry when i know i'm going to hold my period
trust me, savour the freedom!
Its very majority. Until you are 16 and haven't started, there is no want to see a doctor.