If hen has stopped mothering, you could expect eggs from her again any day soon.
Unless of course she is taking her winter egg-laying rest, which depends entirely on the breed. Some hybrids will lay daily all year round without a break (our bluebelle doesn't miss a day, even in winter), some...
My BO has a nine week old pullet chick, and she just started laying again today. The chick has full body feathering, but still peeps.
Momma stopped clucking over her around a week ago, so I would therefore say it can take around a week.
This is my first time as a broody owner though, so...