HELP: Duck Lays White Foamy Mucus

[GeeseGoose]

Help, my duck seems to be trying to lay an egg, but she laid this I believe???

She’s been really broody lately and I’m worried.
What is this, and how can I help her?

 

[GeeseGoose]

UPDATE: I drew her a warm (not hot) bath and within seconds, she let out a shell-less egg and some poop. She’s now sitting and drinking. I’ll keep her in here for another 8 minutes as of when I started writing. She’s puffing a little, still

 

[GeeseGoose]

Another update: I noticed a leech in the tub- is this related??? I smashed it and it had some blood in it- poor girl!
she just pooped normally, with maybe two tiny bits of foam- I just filled the tub up a little more and I’ll keep her in for another ten minutes.
Please, how can I help her?

 

[GeeseGoose]

it’s been about an hour and a half since she passed the shell-less egg, and she’s still laying around, but she’s grooming herself, pooping, drinking and no longer seems to be trying to push something out. I’m still concerned, so if anyone has any idea on what to do, please tell me!