When am i gonna get it? 10 points:)?

im wondering when do you thnk im gonna get my period. ?? okayy well ive had the discharge since my birthday which was December 1st, 2010. So about 7 months almost. Ive had a little bit of armpit hair for about 6 - 8 months. I have hair down there for about 8 months. Ive been getting very moody lately for no reason and ive been crying alot over nothing..My breasts have been growing lately too.Ive noticed my hips have gotten a lot wider in the past 6 months and I have curves. i wear pantiliners all the time just in case but i was wondering when do you think imma get it? ive also gotten some cramps lately and gained 20 pounds since january 2011 (about 6 months) im 11 and my mom got hers when she was 11 so im curious....Thanks. ill give 10 points to the best answer:) PLEASE HELP!