Have you come across pink eggs before? It seems to be unusual occurrence, as eggs are predominantly white or brown. Yet, some instances exist pink eggs can indeed exist. There are a few possible reasons for this https://docs.google.com/spreadsheets/d/1qL-aIM5KxaBFeWx9uqNsFK4KthW88k7ORDu_7a02O8s/edit?usp=sharing