Common Abbreviations

General

SAHM - Stay at Home Mum
WAHM - Work at Home Mum
LOL - Laughing out Loud
ROFL - Rolling on Floor Laughing
PMSL - P!ssing Myself Laughing
LMAO - Laugh my a$$ off (often extended to other things!)
j/k - Just Kidding
IMHO - In My Honest Opinion
IMO - In My Opinion
brb - Be Right Back
bbl - Be Back Later
WB - Welcome Back
IYKWIM - If You Know What I Mean
DH - Dear Husband
DD / DS - Dear Daughter or Dear Son
PMSL - ****ing Myself Laughing
MIL - Mother In Law
FIL - Father In Law
DF - Dear Fiance
DP - Dear Partner
SO - Significant Other (if you are just dating someone)
BBIAB - Be Back In A Bit
TMI - Too Much Information!
HTH - Hope this helps
ATM - At the moment
BTDT - Been there, done that
TTFN - Ta Ta For Now!
TIA - Thanks in advance
WWNN - Wink Wink Nudge Nudge
BB (as in i have sore bb) - Boobies
WRT - With Regard To
JIC - Just In Case
ETA - Edited to Add
(sp?) - spelling? (as in, have I spelt this correctly)

Try to Concieve

TTC - Trying To Conceive
AF - Aunt Flo (Your period)
TWW - Two Week Wait
CD - Cycle Date
DPO - Days past ovulation
HPT - Home pregnancy test
OPK - Ovulation prediction kit
BFN - Big fat negative - in relation to HPT
BFP - Big fat positive - in relation to HPT
EWCM - Egg White Cervical Mucous
CM - Cervical Mucus
BBT - Basal Body Temperature
BD - Baby Dance (sex)
DTD - Do The Deed
POAS - Pee On A Stick
PCOS - Poly Cycstic Ovarian Syndrome
FF - Fertility Friend (charting website)

Pregnancy

PG - Pregnant / Pregnancy
MS - Morning Sickness
BP - Blood Pressure
GD - Gestational Diabetes
GD - Gender Disappointment
FHM - Fetal Heart Monitor
US or U/S - Ultrasound
FM - Fetal Movement
GTT - glucose tolerance test
GCT - glucose challenge test
VBAC - Vaginal Birth After Caesarian
OB - Obstetrician
HB - heartbeat
M/C - Miscarriage
D&C - Dialtion and Curette
PIH - Pregnancy Induced Hypertension
UTD - Up the Duff (pregnant)

Birth and Baby

VBAC - Vaginal Birth After Caesarian
MW - Midwife
OB - Obstetrician
Gyn - Gynecologist
LC - Lactation Consultant
C/S - Caesarian Section
MHCN - Maternal Health and Child Nurse
MHCC - Maternal Health and Child Centre
ECHN - Early Childhood Nurse
ECHC - Early Childhood Centre
PPH - Post Partum Haemmorage