It's pretty great that she's gotten so far with potty training. I've been through two kids, and I can tell you from my experience that 1) each child has his/her own unique pattern of progress for potty training and 2) it can take a while to get all the control needed to complete potty training. You're daughter is still pretty young, so I would not be disappointed or surprised that she's not quite there yet. For now I would recommend putting her in overnight diapers to minimize the mess (you're already doing this, I think?). She will eventualy learn to not poop in her pants, but until then, diaper. Also, before bed, or after dinner, have her spend a bit of time relaxing on the toilet (maybe reading a book), to see if she can get it out of the way then. Best of luck with your miracle child.