Muscovy Duck egg Help!

[BunnyStyles]

Hey guys, Ryan had recently started laying eggs again a week (i think) after i took away her 22 eggs as they werent fertile. We recently got a drake and like one day here, he is already banging the females lol anyways, I put the eggs under the light and i found a dark circle on the bottom of each egg (there is only two) and around that circle is a sorta large white circle bit, idk what is happening. I saw this other post of this person who had the same thing happen to her eggs and it turned into a heart/veins etc but those pics i saw were in the days of the incubation. And my eggs were just freshly laid so i dont know whats happening, can someone help me.

Here is the pics of the dark circle on one of the eggs. please help me



Also here is the post i saw https://www.backyardchickens.com/t/304863/duck-egg-candling-photo-diary

 

[Buck Oakes]

I think you might have fertile eggs but even if they don't to turn out to be fertile it wouldn't hurt to incubate it just incase

 

[BunnyStyles]

thank you !!! i hope they are fertile