Big Fat Negative (BFN)

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 popular in infertility and trying to conceive (TTC) discussion boards and blogs.

The disappointment of a negative result on a pregnancy test—especially when there has been a 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."