Mine didn't even start hatching till day 23 and then it was like popcorn in the bator, one after another and done the same day. I had 1 egg left, no pip, nothing so I gave it till the end of day 24 and candled it. I didn't see any movement so poked a small hole in the air sac and could tell it was a late quitter. I'd wait till the end of day 24 unless something stinks
Good luck, go baby chicks

