Day 23, What the heck!?!

[PaMiniFarmer]

At lockdown I had 13 chickens moving when I candled. On day 20 one hatched and now on day 23 not even another pip. My temps and humidity have been good. I had a couple spikes but nothing longer than an hour. Is this normal? Should I candle them or just them? Thanks!

 

[crazy chook]

My chicks are late hatching too. One hatched on day 21 but then nothing. I opened the bator last night (end of day 22) and just put one up to my ear - YES I heard tapping.
This morning she had pipped and has finally started zipping so I am hoping all the others are just late too. I none of the others pip by the time I move her out I will see if i can hear anything in the other eggs.