It's day 25 and I have 7 eggs in the incubator. On day 18 it seemed like 4 of them had babies but I couldn't tell from 3 since they had a very dark shell. Now I see no signs of them hatching. No internal pips or external and I asked my teacher about it. She said to open one up but I don't want to kill a hopefully good chick. I finally said screw it and candles an egg and this is what I saw. Btw I know before that this egg was fertile from previous candles does anyone know what to do now?