Yay mine were 21 wks too. 3 are laying every other day. 1 is holding out still. But my anxiety for 1st egg is gone. Excited to see new eggs everyday it's awesome.
I've been waiting for my 4 Red sex links to lay they are 21 weeks old. Have all the signs. Still no eggs. I see you are in Texas also. Do You think its just too hot?