KITTENS PLEASE HELP!!

my cat had kittens and they are now just a little over 2 wks old, when and how do you know when to start weaning them??? a little worried as ive never had a cat thats had kittens!!!!!!!!!!!

You'll notice that by the way your cat is acting - she'll eventually become annoyed whenever kittens approach her and will try to move away from them.
Every cat is different, so just watch how the little family is living together :)