But your typed 19 YEAR old....haha, very funny, number9. Was just making the point that my 19 week old DelaRock pullet shows signs of laying and could start soon or may wait for months. You just never know.

My line of Delawares are very early maturing, most laying between 17 and 22 weeks of age, with most between 18 and 20 weeks, so it does happen, but you can't make one lay and you shouldn't get a certain breed because you read an article about it that said they begin laying at 20 weeks old and then go nuts when it doesn't. It's just one of those things.
Another point I'd make for the folks who are going nuts waiting: if a pullet takes her time starting to come into lay, lets her body develop to full sexual maturity, it's much better for her reproductive health over the long haul. So, that's something to think about. Remember the 7 year old late blooming EE hen I mentioned who is still laying and has had no reproductive issues in spite of her huge egg size.
Trust me, after you've raised hundreds of them, the wait is not as nail-biting insane as it was with your first ones. I have a 19 year old pullet right now, a mixed breed, and her comb and wattles are just now starting to turn more reddish-pink that yellowish-pink. Being a cross, I'd guess she may start around 25-28 weeks of age, but that's just a guess. She could be one of those Late Blooming Nellie's, but since I have other hens providing eggs, it's not an issue.