HBMB - Home Birth My Birth
CMWA - Community Midwifery Western Australia
CMP - Community Midwifery Program
CPM - Certified Practising Midwife
TTC - Trying to Conceive
CD# - Cycle Day #
DPO - Days Past Ovulation
CM - Cervical Mucous
EWCM - Egg White Cervical Mucous
AF -Period (Aunty Flo)
2ww - 2 week wait (the time between ovulation and period)
atm - at the moment
brb - be right back
btdt - been there done that
dd - dear daughter
dh - dear husband
dp - dear partner
dpo - days past ovulation
ds - dear son
dsd - dear step-daughter
dss - dear step-son
dw - dear wife
fil - father in law
fwiw - for what it's worth
fyi - for your information
gl - good luck
gtg - got to go
hth - hope this helps
ikwym - I know what you mean
imho - in my humble opinion
imo - in my opinion
irl - in real life
iykwim - if you know what I mean
jk - just kidding
lmao - laughing my ass off
lmk - let me know
lol - laugh out loud
mil - mother in law
np - No problem or Natural Parenting
o - ovulation
omg - oh my god
pita- pain in the ass
pls - please
ppl - people
rofl - rolling on the floor laughing
roflmao - rolling on the floor laughing my arse off
so - significant other
tia - thanks in advance
tmi - too much information
ttc - trying to conceive
ttfn - ta ta for now
ttyl - talk to you later
ttys - talk to you soon
ynk - you never know
wtf - what the f***
wtg - way to go
fak - Feeding At Keyboard (breastfeeding that is, not munching on dinner over the keyboard )
bc - birth centre or before children
uc - unassisted childbirth or freebirth as I prefer
hb - home birth
hbac - home birth after caesarean or "birth" as I like to call it
ita - I totally agree
pm - private message
MW - midwife
Ob - obstetrician
CPD - cephalo-pelvic disproportion
OA - Occiput anterior, a common baby position for birth
OP - Occiput posterior, a less common but still normal position
OFP - optimal foetal positioning
I'll add more as I think of them.

Mummy to Connor (07/07) birthed in hospital - my "Inspiration" baby, and Oliver (02/09) Birthed Peacefully at home in water - my "Best poo ever"