Period before pubic hair? Options

[rockable]

Ok.. so my sister is 11, and she says she has started her period.
Thing is, she has no pubic hair according to mum, and has only just started getting the whole, breasts getting lumpy and greasy hair (which i thought was the start of puberty right?)
So I dunno what the hell to think, because I was under the impression from all the sex education, lessons from mum, internet etc, that your first period comes after your hormones have finished everything else.. last, and that greasy hair, development of pubic hair, growth spurts, putting on weight, acne, mood swings, discharge, hips changing etc came first?!
Is this normal? Could she be faking and have tricked my whole family? :S

I really want to know because its really made me feel like crap because I am a really late developer, and she has always been better than me in that sense, and when I started my period a few months back I felt so good, because I had finally proved to myself that yes, I am 5 years older than her, and I finally felt grown up. Now I just feel like a kid again because a stupid 11 year old is already over taking me! I dont get it.

[MissCuppyCake]

Well I started mine when I was 11. So shes just early in things.
&&
Its normal to have your period before the rest of your hormones. Cuz you growing wont stop til your about 20.

=/

HIH