A
AAFP: American Academy of Family Physicians
AAP: American Academy of Pediatrics
AFK: Away From Keyboard
AKA: Also Known As
AP: Attachment Parenting
ASAP: As Soon As Possible
ATTN: Attention
AV: Avatar

B
BC: Birth Control
BCP: Birth Control Pill
BF: Breastfed or Breastfeeding
BF: Boyfriend
BIL: Brother-in-law
BM: Breast Milk or Bowel Movement (depends on context)
BTDT: Been There, Done That
BTW: By the way...

C
CD: Cloth Diaper(ing)
CIO: Cry-It-Out (sleep training)
Circ: Circumcision
CS: Co-sleep

D
DCP: Day Care Provider
DD: Dear Daughter
DF: Dear Friend or Fiance
DH: Dear Husband
DIL: Daughter-in-law
DS: Dear Son
DSD: Dear Stepdaughter
DSS: Dear Stepson
DW: Dear Wife

E
EBF: Extended Breastfeeding or Exclusively Breast Fed
EBM: Expressed Breast Milk
EC: Elimination Communication
EDD: Estimated Due Date
EN: Extended Nursing
EP: Exclusively Pumping
ETA: Edited To Add

F
FAQ: Frequently Asked Questions
FF: Formula Fed/Feeding
FIL: Father-in-law
FTR: For The Record
FTT: Failure To Thrive
F/U: Follow Up
FYA: For Your Amusement
FYI: For Your Information
FWIW: For What It's Worth
F2F: Face-to-face

H
HB: Home Birth
HCP: Health Care Provider
HPT: Home Pregnancy Test
HS: Home Schooling
HTH: Hope That Helps
H2H: Heart to Heart

I
IBCLC: International Board Certified Lactation Consultant
IIRC: If I Recall Correctly
ILs: In-laws
IMAO: In My Arrogant Opinion
IME: In My Experience
IMHO: In My Humble Opinion
IMNSHO: In My Not So Humble Opinion
IMO: In My Opinion
IOW: In Other Words
IRL: In Real Life
IRT: In Real Time
ISO: In Search Of
ISP: Internet Service Provider

J
J/K: Just Kidding
JMHO: Just My Humble Opinion
JMO: Just My Opinion

K
KWIM: Know What I Mean?
KWYM: I Know What You Mean

L
LC: Lactation Consultant
LLL: La Leche League
LMAO: Laughing My (rear) Off
LMK: Let Me Know
LO: Little One
LOL: Lots of Laughs or Laughing Out Loud

M
MIL: Mother-in-law
M/S: Morning Sickness

N
NAK: Nursing at the Keyboard
NC: or no-circ - Non-Circumcised
NFP: Natural Family Planning
NIP: Nursing In Public
NP: No Problem
NV: Non Vaccinating

O
OMG: Oh My God
OP: Original Post/Poster
OT: Off Topic
OW/OM: Other Woman/Other Man

P
PCP: Primary Care Physician
PITA: Pain In The A$$
PLMK: Please Let Me Know
PM: Private Message
POV: Point of View
PPD: Post-Partum Depression
PPP: Post-Partum Psychosis

R
RL: Real Life
ROFL: Rolling on the Floor Laughing
ROFLMAO: Rolling on the Floor Laughing My (rear) Off
ROFLMHO: Rolling on the Floor Laughing My Head Off
ROTFLMAOPMP: Rolling on the Floor Laughing My (rear) Off Peeing My Pants

S
SAHD: Stay-at-Home Dad
SAHM: Stay-at-Home Mom
SAHP: Stay-at-Home Parent
SIL: Sister-in-law or Son-in-law
SO: Significant Other
S/O: Spin Off
STBX: Soon to be Ex (spouse)

T
TIA: Thanks in Advance
TMI: Too Much Information
TP: Traditional Parenting
TTC: Trying to Conceive
TY: Thank You
TYVM: Thank You Very Much

U
UB: Unassisted Birth
UTI: Urinary Tract Infection
URL: Web Page Address

V
Vax: Vaccination
VF: Vaccination Free

W
WAHD: Work-at-Home Dad
WAHM: Work-at-Home Mom
WHO: World Health Organization
WIC: Women, Infants, and Children (US Gov. Assistance Program)
WOHD: Work-Outside-Home Dad
WOHM: Work-Outside-Home Mom
WTG: Way To Go

X
XH: Ex-Husband
XW: Ex-wife

Y
YK: You Know?
YW: You're Welcome