No chicks yet...timing off?

[LeslieG87]

Hey all,
I have a black silkie girl (and a partridge girl who sort of shares the nest) who has been sitting on ten eggs for three weeks. No chicks yet, and we're on day 22. Anyone else had this happen? She's sat consistently so I know they've been warm all along. I have two Roos and four girls in my silkie coop so I can pretty much guarantee the eggs were/are fertile. Any insight? Haven't candled and don't own a candler.
Getting anxious!
Leslie in Va

 

[sumi]

I once had a broody hen hatch start on day 22 and end with a late bloomer on day 25. Give her a bit more time and fingers crossed!