Some breeds are prone to brooding. My silkie hen lays around 12-14 eggs, one a day, then goes broody for around 5 weeks. She has done this season nce she came into lay.My mom said the same thing. But she only started laying a couple months ago. Would she stop because of winter? She’s also in the house. She lives inside with a special needs rooster. Would the lighting in the house effect her egg laying?
With winter, high egg production breeds can lay straight through their first winter, but most heritage breeds do take a break due to shortened daylight hours, even pullets. It's their time to recover and gain condition for the next breeding season.
Increasing the amount of daylight hours to mimic summer with artificial lighting may get her back on the lay if she is not broody, but a broody will need to break and have a bit of a recovery period before going back on the lay.
I've never been able to break my broody, so her recovery period is usually around a month or so. I'm not sure, but would assume recovery would be shorter for a broken hen.