We had a hen sitting on three eggs. Two hatched on Friday and there has been one left. I was getting ready to throw it out this morning, but saw this crack. I’m not sure if it’s a pip or if the egg is bad. I tried candling a while ago, but the shells seemed too dark and/or my light too dim. I think all the eggs were laid on the same day, but I’m not 100% sure. She gathered some eggs when We had company for the weekend and I wasn’t paying super close attention. I think 21 days should have been last Saturday 8/13.