chicken laying two eggs a day

[cutechickenlove]

one of my chickens started laying eggs today but recently I noticed that one of my birds is laying two eggs at a time, is anything wrong, she is still acting normally not even broody.
I am pretty positive it is her because she will go up to her nesting box and all the other chickens will stay down.

 

[Judy]

They produce one egg approximately every 25 hours. Once in a great while, a hen lays two eggs in a day due to some error in the reproductive system, but I've never heard of a hen doing this more than one day in a row.