So, we've had a lot of bad luck, lately. Two of my sweet hens left me with an egg a piece as their farewell gifts, so I decided to incubate them in hopes of getting two just like them. Well, I was over the moon when I saw tiny veins appear on day 3! However, here we are on day 7, and I can't make out an embryo in one of the eggs! The veining looks great and continues to grow, but I don't think I see a chick. Is this like chicken blighted ovum? How are the veins sustaining without a heartbeat? Should I not see the chick by now? I can see a chick in the other egg.