Are my duck eggs fertilized?

[Allieshoe12]

Hey! So I’ve been incubating this egg for 3 days now and I’m still unsure if it’s fertile or not, here are some pics

(this pictureis day 1)

(and this picture below is day 3-today)

Thanks!!!

 

[JaeG]

Yes, there looks to be something growing there. It takes longer to see development in duck eggs. In a couple more days you should see more and by day 7 it will be very obvious.