Mine started laying right around 21 weeks, but I think it just depends on the birds. Right before they started to lay, I noticed their combs became really bright red and my first layer started making all sorts of noises that she didn't do before. A couple days after that, she started to lay, and a week after that, my other one started laying. I think some EE just take longer to mature depending on what they are mixed with, too, but that is just my thoughts. Good luck!
Hens go broody when you don’t want them to… and won’t go broody when you do. 

