7-month-old EE has stopped laying: should I be worried?

[bawkbawkbawk]

My EE, Coco, started laying around 4.5 months and was giving us lovely light green eggs until about a week ago. She just stopped laying. Her behavior is normal, she doesn't seem ill; she's outside free-ranging with the rest of the flock as I write this.

We're in Southern California so no winter so speak of and my BCM and SS are laying regularly. Any thoughts?

 

[ParadiseFoundFarm]

Could be going into moult?

 

[bawkbawkbawk]

No sign of a molt. My other birds didn't molt until the fall after they began laying - will a pullet as young as 6 months go into a molt?