Little bit confused

Hiya Girls

I am new to this site some of you may have seen my post introducing myself a few days ago i am really enjoying reading everyones posts, although because im new i havent a clue what some of the abbreviations are.
I dont suppose somebody could be so kind to just tell me a few when they get a min.

So far all i know it
af - aunt flow (period)
bd - baby dancing
ttc - trying to concieve

Thanks in advance xxx