I am not too experienced in hatching eggs either but that's definitely a blood ring. I had to get rid of a couple my eggs looking that. I am not sure what could of caused it.
Most look to be blood rings but a couple could be developing. I agree on shipped eggs. I have hatched out shipped eggs and some were poor hatches and some fair hatches. I also ship eggs and try my best to pack them well and get them to their destination within 2 days.