3 month old duck question: saggy undercarriage to the right

[Moments]

I have 3 (3 month old swedish ducks), 2 black and one blue. I noticed today one of the blacks , (her name is Tuxie) undercarriage is sagging (as the older ladies are) but to the right instead of centered in the middle. I'm not sure if this is normal? My other other two Swedes are still firm in the bottom, no sagging and I have a 5 month that started laying a few weeks ago and shes still firm underneath as well. Any insight would be greatly appreciated. Photos attached for reference... It's a challenge to get a good photo cause she's black

 

[Jenbirdee]

is she eating and pooping like normal?
how close to the ground does it hang?
Is it hard or soft?

 

[Moments]

is she eating and pooping like normal?
how close to the ground does it hang?
Is it hard or soft?

It seems pretty low but not low enough to touch the ground. I haven't felt it yet, wanted to wait and see what I heard on here first. She's eating, swimming, foraging fine.... On the go with the other ducks as normal. I'm not sure about pooping cause I don't have her separated and haven't noticed her poop while I was outside. She's seeming completely fine but she seems young for that area to be dropping low I feel.

 

[Jenbirdee]

Im not an expert but I just wonder if it could be acites and this thread may be helpful.
https://www.backyardchickens.com/threads/ascites-in-ducks.1344982/
@Miss Lydia

 

[Miss Lydia]

Can a 3 month old get Ascites? I have. 7.5 yr old Runner with it but she was around 5 yrs when I noticed the change.

 

[Moments]

I felt her this morning and there's not hard spot or any resistance. It's soft like the rest of her body and looks a bit less prominent than it was yesterday

 

[Jenbirdee]

She might just be a little lopsided like some people I know (me lol)

 

[Moments]

She might just be a little lopsided like some people I know (me lol)

Hopefully it's nothing to be concerned about. It seems to have appeared recently as I usually pay close to attention to them and just noticed it yesterday.