Maybe, kind of sort of...if they lay before mid October, course I am farther south than you... but if they don't lay then, they will wait to start laying in February...unless you add lights.
At nineteen weeks - you could be 4-6 weeks from laying, which is going to be close to the deadline...maybe you will get eggs, if you do get eggs, you are very apt to have them all winter.
If you add lights you have to do it right. I never do, so I am not sure on the how, but know there is a trick to it.
Mrs K