I've got a broody on three eggs at day 18. I was checking under her today bc she is still in the coop with the other hens and one occasionally lays in her nest. I notice two eggs with cracks. One appears to have broken from the inside like it pipped but the membrane was not broken and looked to be drying out. Pretty sure I saw movement from the chick. How long should I wait before I intervene? Does anyone have tips on how to handle this? It may be normal but the drying membrane concerned me.