O my! I’ve raised chickens for almost 40 years and have never had this happen. My girls are only 5 1/2 months old so they are laying small “pullet eggs”. Imagine cracking one open and a plunk of something hard inside falls into bowl! There was no yolk inside the tiny dark brown egg, just clear, but the original egg had yolk and clear.
Hens go broody when you don’t want them to… and won’t go broody when you do.

