Not every chicken will lay an egg every day. It might not even be the same chicken that's not laying. It might be that one girl skips Monday and a different girl skips Thursday, etc. If you live somewhere that is heading into winter egg laying may become sporadic at best. Last week one day I got only one egg from my entire flock, another day I got 9 eggs. Yes, most days I get 5-6, but really anything goes and this is ok.