hi there, i responded earlier in this thread but really wanted to add something in
I wanted to maybe put a few moms minds at ease...i see some are worried because there daughters are showing signs of body changes, that they are worried they may get there period soon...i can assure you it isnt always the case, sometimes very far from it..
my oldest dd was barely 9 when i realized she was already growing hair under her arms

...she was very early on this and as for her needing a bra, she didnt actually need one until grade 6....she was pretty average on this one...she had the hips and the "breasts" and she didnt get her period until she turned 14, the very end of grade 7...very lucky girl....btw, that is when her bra size started to go up also, all the way to 34 D/DD at 17...
now my youngest dd is 12(turning 13 in 2 weeks)...same as my oldest dd, hair under the arms really early BUT at 12 she already wears a 34 B, by far one of the biggest of all her friends(she is also quite tiny, only 5 ft 1 inch and wears a size 0/1...she also has the curves in the right places which really freaks me out BUT she has not started her period yet...i am thinking she might be late like my oldest dd...i sure hope so for her sake, she is still my baby and i am not ready
Here's to hoping that many of the little girls just start developing early, but get lucky and dont actually get it for a long time to come.....
sharon