The following abbreviations and acronyms are frequently used on online support groups where women discuss their trying to conceive experiences.
2WW: Two week wait (before testing, not always 2 weeks)
AF: Aunt Flo, your period.
BD: Baby Dance. Have intercourse for conception purposes or by extension any form of insemination.
BFN: Big Fat Negative (pregnancy test)
BFP: Big Fat Positive (pregnancy test)
CD: Cycle Day
CH: Crosshairs- the lines drawn on the chart to indicate ovulation
CM: Cervical mucous, also known as cervical fluid. It is fluid produced by your cervix as you approach ovulation due to increased estrogen.
CP: Cervical Position
DH, DD, DS: Dear Husband, Dear Daughter, Dear Son
DPO: Days Past Ovulation
EDD: Estimated Due Date
EWCM: Eggwhite cervical mucous. See Eggwhite cervical fluid.
FSH: Follicle Stimulating Hormone
GnRH: Gonadotropin-releasing hormone
HPT: Home pregnancy test. Measures levels of the hormone hcG which are produced in pregnancy.
HcG: Hormone detected by pregnancy tests. Human Chorionic Gonadotropin.
IVI: Intra-vaginal insemination
ICI: Intra-cervical insemination
IUI: Intra-uterine insemination
IVF: In-vitro fertilization
LH: Luteinizing Hormone
LMP: Last menstrual period. The first day of your last period.
LOL: Laughing out loud
LP: Luteal Phase
LPD: Luteal Phase Defect
OPK: Ovulation Prediction Kit. OPKs measure luteinizing hormone, the last hormone to peak before ovulation.
POAS: Pee on a stick
RE: Reproductive Endocrinologist- Fertility Specialist
TTC: Trying to conceive.
VFL: Very Faint Line, most likely on a pregnancy test.