I have 29 birds right now. I am getting MAYBE three eggs a week.Lots of peoples chickens lay eggs in the winter. You can also use a artificial light too so they lay eggs
Older hens are molting. Pullets not yet at POL. Days getting shorter. I may not get eggs now till March. Some people only have two or three hens. And they may not be laying. Don't mock those who buy eggs at the grocery store just because you don't have to.

Edit, 29, not 39 birds. Six are cockerels and 1 rooster.