Is this a worm???

[Melsp08]

I cracked an egg this morning and found this inside the white of the egg. Is this a worm?
All poops are and have been normal and healthy looking. No sign of worms in their poops at all.

 

[Eggcessive]

No, it is just the chalaza, the part of the egg that anchors it to the yolk.
https://whatscookingamerica.net/wp-content/uploads/2015/03/Eggcrosssection.jpg