How far along are my duck eggs?

[brooder]

Hey there, my duck Lillian is expecting to hatch two babies . She's taking great care of her eggs, and as far as I can tell, the ducklings are in perfect health. My only question Is "When will she become a mother?!" I've been candling the eggs daily, but for some reason I cannot tell which picture on the internet looks most like the eggs. I'm going to attach some pics and hopefully one of you can help me out.
Thanks in advance!

 

[oldhenlikesdogs]

Looks like 10-15 days to me but I no expert.

 

[brooder]

Looks like 10-15 days to me but I no expert.

Thanks alot, I guess I'll just have to play it by ear.

 

[ChickensAndYoga]

I incubate chickens. But, I'd say also about Day 15. I always watch duck threads on here .Good luck!

 

[brooder]

I incubate chickens. But, I'd say also about Day 15. I always watch duck threads on here .Good luck!

I appreciate it, also love your username!