my mama duck layin eggs

[stephanie humes]

Hi this is my first time being on here my first time raising ducks my female has been laying eggs since last Monday she has 8 of them and her nesting box I came home from work today and she has a sack hanging from her bottom she won't let me get close enough to her and I'm not sure what I can do to help her and they suggestions please

 

[MagpieDucks]

Do you have a picture?

 

[MagpieDucks]

Any other symptoms? Is she acting normal? Eating, drinking, pooping?