Yes indeed. Sorry ... we get so used to our abbreviations and we forget to spell things out sometimes. Here are some others from http://pregnancyandbaby.com/pregnancy/baby/TTC-ABCs--Preconception-acronyms-1135.htm:
2WW: Two-week wait (until you can take a pregnancy test)
AF: Aunt Flo(w), your period (menses)
BBT: Basal Body Temperature
BD: Baby dance, sex
BFN: Big Fat Negative (test result)
BFP: Big Fat Positive (test result)
BMS: Baby-making sex
CB: Cycle Buddy (someone who shares the same menstrual cycle/ovulation dates)
CD: Cycle day
CF: Cervical fluid
CL: Corpus luteum
CM: Cervical mucus
CP: Cervical position
CY: Cycle
DI: Donor Insemination
DP: "Dancing" partner; spouse or significant other
DPO: Days past ovulation
DTD: Doing the dance, sex
EW: Eggwhite (re: consistency of cervical mucus)
FTTA: Fertile Thoughts To All
FMU: First morning urine
hCG: Human Chorionic Gonadotropin (pregnancy hormone)
HPT: Home Pregnancy Test
IF: Infertility
IUI: Intra-uterine Insemination
IVF: In Vitro Fertilization
LH: luteinizing hormone
LMP: Last Menstrual Period
LP: Luteal phase
O: Ovulation
OPK: Ovulation predictor kit
PCOS (POS): Polycystic Ovarian Syndrome
PG: Pregnancy, pregnant
S/A: Sperm/semen analysis
TCOYF: Taking Charge of Your Fertility (book)
TTC: Trying to conceive
Thanks. I know most of them, that one just really stumped me!