Here is a list of abbreviations for Trying To Conceive (along with some others) for you to refer to as needed.

ACC - All Crossables Crossed (wishing good luck)
AF - Aunt Flo (period)
BBT - Basal Body Temperature
BD - Baby Dance
BFN - Big Fat Negative (negative pregnancy test)
BFP - Big Fat Positive (positive pregnancy test)
CB - Cycle Buddy (someone on or around the same cycle as yourself)
CBED - Clear Blue Easy Digital (pregnancy test)
CD - Cycle Day (current day of your cycle)
CM - Cervical Mucus
CP - Cervical Position
DB - Dear Boyfriend
DD - Dear Daughter
DF - Dear Fiancé
DH - Dear Husband
DPO - Days Past Ovulation
DS - Dear Son
EWCM - Egg White Cervical Mucus
FF - Fertility Friend (Web site used for charting)
FMU - First Morning Urine (used for pregnancy tests)
GL - Good Luck
H&H9 - Happy & Healthy 9 months (of pregnancy)
HCG - Human Chronic Gonadotropin
HPT - Home Pregnancy Test
LH - Luteinizing Hormone (detected in OPKs)
LP - Luteal Phase
M/C - Miscarriage
O - Ovulation
OPK - Ovulation Prediction Kit
POAS - Pee on a stick (pregnancy test)
PCOS - Polycystic Ovarian Syndrome
PG - Pregnancy
RE - Reproductive Endocronolgist (Fertility Specialist)
S/A - Sperm/Semen analysis
SO - Significant Other
TMI - To Much Information
TWW - Two Week Wait
KWIM - Know What I Mean
TBH - To Be Honest
IMO - In My Opinion
BTW - By The Way