Poop, poop, & more poop

AHH..... E's new thing to do since she is a "Big Girl". For the past two weeks she has been taking her pull-up off by her self after she has pooped when mommy isn't looking. So poop gets all over her legs the carpet... just everywhere! It's driving me bananas!! She has done this 4 or 5 times now. I hope it stops soon! She has been doing awesome for a while down going pee pee in the potty but the going poop in the potty thing is not working out so well..........