Speaking to her show boyfriend Luke Scrase, Deana Uppal, Adam Kelly and Lauren Carre in the garden, Ashleigh appeared flummoxed when the trio revealed the source of chickens.
"The white and the gunk, please don't tell me that's a chick," said a confused Ashleigh, following their explanation.
Luke S added: "It's not been sat on, incubated or heated to create the birth and the creation of the animal."
Deana attempted to simplify the topic, commenting: "When our period comes out, it's eggs. If it was in our bellies it would be a baby."
Growing even more confused, Ashleigh said: "Chickens get pregnant don't they?"
Big Brother Day 22 - Photo Gallery:
Lauren attempted to calm her down, explaining: "There was never a chick. You're eating the protective layer."
Afterwards, the 20-year-old barmaid revealed: "I swear on my life, I actually did not know that happened. I thought chickens gave birth to chicks."
Big Brother continues daily on Channel 5.