BFN has 2 meanings
Big fat negative
When you receive a negative pregnancy test, you received a "BFN," which stands for "big fat negative." People often use it in emails and online chatrooms and forums.
Most people who use BFN are disappointed that the test came back negative, hence the "big fat" part. The woman may be trying to get pregnant with her partner but has experienced many setbacks and is bummed out.
BFN is the opposite of "BFP," which excited mothers or mothers-to-be may send when sharing the exciting news that they are expecting. They typically use BFP on pregnancy and baby forums.
Bummer, it came back with a BFN again this month.
|STBY||Sucks to be you|
|Shucks||An expression of disappointment|
|BFP||Big fat positive|
BFN stands for "bye for now," which is used to end a conversation, but also indicates that you will speak again soon. It is typically used online or in text messages.
When online, the acronym is often seen in chat sessions and at the end of posts in discussions on social media. It may also be used at the end of online game matches with players that know each other.
BFN is also used in text messages, but not as often as online. When it is used in texts, it is typically utilized to end the current conversation, but also say that you will talk again, whether it be in texts, on the phone, online, or in-person. BFN may also be abbreviated as B4N or BB4N.