Read this link that was posted on Mamasource not long ago:
http://www.mamasource.com/request/6139272052470775809
Children, WILL have MANY moments of doing great, then not, then doing great again. Remember, they are still learning and it takes time...and it takes time for a child to "master" toileting ability. Your girl is still so young, and Your girl is normal. THIS happens ALL the time. AND you do NOT want to instill on a child, that pooping is "bad" and that they will get punished or embarrassed about it if they don't "succeed" with it. Otherwise, other problems will develop. They are still just a child.
You should not feel "pressured" to have her be a poop expert yet... just because of the Daycare accidents there. Again, she is still so young... to have pooping fully mastered. AND the Daycare should NOT be pressuring her either nor making her clean up her mess, or expecting her to be perfect about it yet. Each child is different. If all kids "mastered" complete toileting at 2 years old... then that would be abnormal too. Toileting... should not be a pressure for the child... it is biological and an emotion based "ability", with each child developing differently.
All the best,
Susan