I did some more reading and some hatches go to 25+ days , if temp went low, so you have time for more chickys to hatch *smile* . There is also a water test that can be done if no pips or cracks. Glad there is so much helpful info out there .
Oh I'm so glad you got a chick running around.
I had one high spike (106) at lock down and it's the beginning of day 21 and nothing yet - no pips, peeps, cracks, chicks. yikes
Good luck on your hatch!