corn snake fieces

Question
i just bought my corn snake a week and a half ago, her name is bailey.  yesterday was the second time i had fed her. i am feeding her one thawed pinky a week just as the pet store told me to do so.  the first time i found what appeared to be the pinky formed to the snakes shaping in the cage 48 to 60 hours after feeding her, i didn't pay much attention to it.  i fed her again yesterday and today i found the same thing in her cage, i pulled it out and it was the pinky i fed her.  is this normal?  she is only about a foot long and i want to say less than two months old.  is it regurtitated? what can i do about this? or what couls it be from

Answer
It is most certainly regurgitated.  I would return the snake to the pet store asap as it will most likely not make it.  Sorry to be the bearer of bad news!  Temps in the cage could cause this but usually corns are pretty forgiving when it comes to temps.