Help! Day 22.5 and still not one pip!

[TeamTurnerEst01]

Hello Backyard Chickens Community!

I have tried my hands at hatching my own chickens and I have a problem. I'm on day 22 1/2 but I have 13 eggs with not one pip. As far as I know the temperature has always been spot on, humidity has always been good and until day 18 they were in an egg turner. The only thing I ever saw that could be a potential problem was how dirty the eggs were when they arrived from the supplier. Still they seemed to be developing okay, I had to remove 6 that never seemed fertile and there was maybe 3 more that seemed questionable when I candled them on day 17. Still I expected atleast some to hatch. And by 22 1/2 I already expected a pip or rocking eggs (though it's hard to see inside my brooder so I can't be sure of movement or not).
Should I just keep waiting it out?

P.s.
4 Black Copper Marans
9 Cream Legbar

Temp & Humidity good.

 

[cmom]

Are you sure you thermometer is accurate? Most often if chicks don't hatch on time it is because the temperature is too low or too high. If the temperature was low it may take a day or two extra for the chicks to hatch and if it's too high they can hatch a day or two early. Have you candled them and do you see any movement? You may or may not see movement at this stage. They do have rest periods. If you tap on the egg while putting it next to your ear, do you hear anything. Good luck and have fun...

 

[cmom]

If you set you eggs, let's say on a Monday, then in three weeks later on Monday they should hatch. Some people count the day they put the eggs in the incubator as day 1. My day 1 is the following day. I don't count the day I put the eggs in the incubator.