Hi JadeL!!
Welcome to the forum (I've just returned after having some time out) Hopefully your stay here is short n sweet!..
Do you mean BFP? if so thats a big fat positive (positive pregnancy test) FRER is a first response early detection test.. AF is Aunt flow (Period) BD is baby dancing another term for doing the deed. and unsure about BBS.. There's also BBT.. thats basal body temperature for those who are taking their temperatures in the morning to track/confirm ovulation.
xx