what seems here.. is she was far too young...

she seems not mature enough for having puppies... like she sees them as strage things that try to get too close.... perhaps the mother instinct will pop soon or you´ll have to bottle feed and estimulate the puppies to relieve themselves...

keep a goo deye on them and let us know what happens... some dogs are motherly on the go some take some time, let´s hope yours get the idea fast and starts to take care of them...