Interesting. I got my period in 4th grade at age 10. I was always small for my age, then shot up between 4th & 5th grade and was within a half inch of my adult height by 11. At least I didn't really need a bra until 8th grade or so.

My daughter has always been on the tall side, but she's definitely in the middle of a growth spurt as she approaches 5th grade. Plus, she got her period as well this year--4th grade, age 10.

So there's some anecdotal evidence for you. smile