Warning This is GROSS!! do not look at if eating!

DO YOU THINK SHE IS READY TO BE POTTY TRAINED??

I am sitting on my desk and with in minutes lili shows up with a big poopie and says mama poopie! Before I can look at her she sets it on the desk! YUCK YUCK!! I said lili go To the POTTY! then my 7yr old comes by and says YUCK and begins to scream!! I Just don't understand If she can tell when she is poop or peed why can't she go to the potty? Is this a sign? should I be doing something in particular to help her go to the potty?