HELP!!!Day 18!!! Air sac too small?!!!

[Majak5]

It’s day 18 and I candles my eggs before lockdown today and I’ve been marking the air sac but I’m scared it is too small, also I can still see heaps of space in the egg along with clearly visible veins. Will the chick be ok. I have quail eggs in their also but are pipping so I can’t turn the humidity down for the air sac to get bigger. I don’t know what to do.

 

[Cyprus]

Your air sac looks perfectly on track. Right size, and the egg looks fine so far. The extra space isn't anything to concern yourself over. The chick will absorb that and take up more space prior to hatching.
Just stay on course for hatching If you have problems later with the hatch, let us know before you even think about assisting.

 

[Majak5]

Thank you, I have only hatched quail eggs, this was the first time with chicken eggs. So glad that they are on track, I was looking a pics online and I thought the air sac was a bit small. Will send pics as it proceeds

 

[Rose Quartz]

Yeah I would agree your air cells look pretty good. they change a lot in the next few days even with the humidity up.