This is the first time I've incubated eggs and I have 6 Pekin duck eggs in the incubator on their 11th day. I can see all of the embryos moving but 1. I'm going to wait a couple of days just to make sure before tossing. In almost all the eggs there are dark spots. I'm assuming this is blood. I'm attaching a photo if anyone can tell me what exactly is going on. The embryo is just above the "5" in the middle. Excited to see them hatch! I've worked so hard on this homemade incubator & getting it just right. I hope they all hatch! Any input would be appreciated. Thank you!