sisterhood behavior

I have a broody Langshan (Lucy) who has been sitting for 19/20 days. I heard loud chirping last night, not this morning but don't want to move her so as not to disrupt mother nature. 1st question: Are the chicks hatching or are they still in the egg? 2nd: Lucy is separated from the other hens...

I have a broody Langshan (Lucy) who has been sitting for 19/20 days. I heard loud chirping last night, not this morning but don't want to move her so as not to disrupt mother nature. 1st question: Are the chicks hatching or are they still in the egg? 2nd: Lucy is separated from the other hens...