Hi please can someone give me advice, this is my first incubation and I followed the rules of turning eggs, right temp & humidity and now it's day 24 and still no signs of chicks hatching. On day 21 I slowly opened up a egg and the chick was alive (later died)
However it had not fully absorbed yolk sac and it looked like a day 18 chick not day 21 so I candled the rest and they all look a live. But I don't know what to do I'm worried what if the have internally piped and are stuck, I'm really worried about my them. Should I leave them alone and wait or try and make a little hole to see what's going on.

However it had not fully absorbed yolk sac and it looked like a day 18 chick not day 21 so I candled the rest and they all look a live. But I don't know what to do I'm worried what if the have internally piped and are stuck, I'm really worried about my them. Should I leave them alone and wait or try and make a little hole to see what's going on.