Big Fat Negative (BFN)

Definition - What does Big Fat Negative (BFN) mean?

A big fat negative (BFN) is slang term used to convey disappointment with a negative result on a pregnancy test. This result means that the test taker is not pregnant.


FertilitySmarts explains Big Fat Negative (BFN)

Big fat negative is a term that has become popularized in fertility and trying to conceive discussion boards and blogs. The disappointment of a negative result on a test, especially when there has been significant effort in trying to conceive, can be difficult news to accept and even more difficult to share.

Referencing a BFN can feel like a more detached, and therefore less disappointing, way to communicate to "I am not pregnant."

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