Rouen Duck Eggs

[MsChickenTender]

Hello, mother cluckers! So...I have 7 beautiful Rouens...2 of which are drakes. I bought them all in September of 2020. All my females have been laying consistently, everyday for a while, now, except one. I'm not sure which one began laying late, and I wouldn't be concerned, except her eggs are all oblong. VERY different from the rest. None of them are acting strangely or anything. I'm not trying to hatch any ducklings, we just love the eggs. I'm more concerned about the duck. Is this normal? Will she always lay oblong eggs?

In the first pic,the eggs I'm concerned about are the bottom two.
Second pic, it's the 2 on the right.

 

[SolarDuck]

It's normal for them to be a little smaller when they first start they will probably be like the rest soon