It is hard to tell in that photo. I have a couple hens that I want to incubate eggs from that I am having a difficult time judging fertility. I plan to put two eggs in the incubator and run them for 2 or 3 days, before cracking them open. It should be obvious by then. Last year I incubated a bunch of clear eggs before pulling them at lockdown, so this year I'm going to test first.