Eggs have pipped in the pointy "breech" egg end. Been pipped for 24-36 hours, and no unzipping, yet. Hear a little chirping but I can see the beak moving to assure life is there. I'm using a Brinsea Octagon 20. Auto humidity control feature is constant at 53%. Is it normal for peas to wait more than 36 hours to "unzip?" For chickens, which I've hatched countless times, they pip, then 24 hours later they usually unzip. I really do not want to play mother nature and remove the chick from the shell, but if we're at 48 hours after pip and no emergence, then I may intervene. Intervene until the first hit of blood, then stop immediately, I know.