Somewhere between 5-6 months is most common, so you've a few weeks to wait yet. Once it does happen it will seem remarkable that in just 5 months a chicken can go from being IN an egg to LAYING that same egg.
Yea I'm blown away an the hole chicken thing I didn't think I couldent get atached like I am. I love all my gurls but my little barred rocks are my reall sweethearts I mean they cme runnin to me an every thing Now just need eggs lol but I can wait cause when they do they do start Layin it's Goin to be fun