This is my first hatching attempt ever. I have a Hovabator still air with lots of eggs in it and we are on day 24. The bator in in my room and I swore I heard a peep early this morning and I jumped up and grabbed a flashlight--nothing. I convinced myself that it came from outside and went on. THEN.... I was looking at them a few minutes ago, debating on giving up, breaking them open to see how far we got, etc., and I know I heard a peep! I haven't heard any pecking, which is what I thought "pipping" was. Can they make noise still in the shell, or am I just delusional? Any thoughts on what I should do?