So, I'm on day 18 of of my hatch(incubator). I just have a quick question. I candled them this morning and all was good. In fact, I saw that one had already broken through the air sac. Well, it is now 3:30 pm and that particular one is peeping quite a bit and I have another that is wobbling around. My concern is that these eggs are really hard. They are from my father in laws Rhode Island reds and when we've eaten them before, they are super hard to crack. Do I need to worry about these chicks not being able to get out?? Thanks in advance!!!