Day 23 of Incubation. Unhatched Chick Might Need Help!! Air Hole needed?

[Hatch in chicks]

So I set 12 eggs on 4/12 (23 days ago). Temperature throughout incubation: 37.7 Celcius (99.8 Farenheight). 10 eggs went into lock-down 4/30 (day 18). 4 chicks hatched on day 21. 3 chicks hatched on day 22. On day 22 egg #9 pipped then died. ! Two eggs are still in the incubator [today-5/5] (day 23). These are their numbers: #8 and #3! I candled both of them when I took out the 7 hatched chicks. #8 didn't look very well: Yellow air sac color, no movement, not internally pipped. #3 looked alot better but I don't know why it isn't hatching. Here is what I saw when I candled egg #3: some veigns, internally pipped, some movement, big clear air cell. I don't want to take it out again [to candle] and I didn't take any pictures cause I didn't want it to get shrink-wrapped. Does anyone have any recommendations? Why hasn't it pipped yet? Is it still absorbing yolk on day 23? How long should I leave it in there? I candled it this morning at 8:00am. I don't know how long it has been internally pipped.
Thank you!!!

 

[Hatch in chicks]

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[Mill Chick]

You can open up above the air cell then you will be able to tell if it is shrink wrapped, malpositioned, or just needs more time... here is an article on assisting https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/

 

[Sc_chickengirl]

Honestly watch and wait it the best advice I can give. I've gotten to the point that I only candle eggs 3-4 times during incubation. Some people try making safety holes and all that but imo if the chick cannot pip on its own it probably would not live anyway. After it pips then you can help it if needed.

 

[Hatch in chicks]

You can open up above the air cell then you will be able to tell if it is shrink wrapped, malpositioned, or just needs more time... here is an article on assisting https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/

If I do "help" the chick... will[or could] it do more harm than good?

 

[Mill Chick]

If I do "help" the chick... will[or could] it do more harm than good?

It depends but at this point you should probably open up the egg if you do it right even if the chick is not ready to hatch it will be fine but just give it your best shot and that’s all you can do sometimes. The first couple times assisting is very scary today I ended up helping two shrink wrapped chicks successfully today but they where my 4th and 5th chicks that I have assisted though but fortunately all that I have assisted have survived but the ones that I have not did not survive