Some background- I'm a new chicken owner who was recently given 5 Silkies from some friends. One of my hens became broody and ended up sitting on two eggs. One egg went bad and I already tossed it. The second is currently on day 12 and appears to be developing well- albeit a bit tight in there already. When I was candling this egg at day 8 there appeared to be two black spots moving around in the egg. From what I understand twins can be exceptionally difficult to hatch- if they even make it that far. My children are very excited about this one egg hatching and I'd like to be able to prepare them if it's not likely to go well. This is quite the learning curve for me so I appreciate any information you all can offer. Thank you so much!
(For some reason my phone isn't letting me imbed the photos or video. I'll try to get them posted soon!)