can we eat unfertilized eggs ?

No. In Jainism, eggs are not considered permissible, whether fertilized or unfertilized.

Reason:

• They come from an animal source.
• Jain ahimsa avoids foods connected with violence or harm to living beings.
• So eggs are generally counted with non-vegetarian food in Jain dietary discipline.

So, according to Jain principles, eggs should not be eaten.