duckling hatched but still has yoke and now it wont move

[piggirl19]

Okay so i had a duckling hatch today and the yolk is still there? What can i do since she is just sleepibg .. Was she to cramped or what? Any idead on how to help her.. Please and thanku to those who reply. Why did she hatch so early?

 

[piggirl19]

This is how she looks