The Ultimate Fertility Glossary

Diving into the world of fertility can be a little overwhelming. Introducing to you the ultimate guide to understanding fertility lingo online and offline.

Bringing light to complex fertility terms

Maybe you are trying to get pregnant, maybe you are just curious about your body. One day you find yourself on a message board with hundreds of women going through the same things you are. GREAT! Except…what exactly are they saying? Talking about 2WW and BFNs and you have no idea what’s going on.

You shouldn’t need a medical degree to understand fertility!

Dr. Alexander Just, Gynecologist, expert in female reproductive
science, co-founder and medical director at ivary.

Are you interested in women's health?

All the best on FemTech, female health, and modern life – straight to your inbox.


AF: Aunt Flo, After Flo, Period, or Menstrual Cycle

AH: Assisted Hatching (process to help implantation during IVF)

AI: Artificial/Assisted Insemination

AMH: anti-Mullerian Hormone

AO: Anovulatory (no ovulation is occurring)

ART: Assisted Reproductive Technology

ASA: Anti-sperm Antibody (proteins that damage or kill sperm, present in blood, vaginal fluids or semen)


BBT: Basal Body Temperature (lowest body temperature reached suring rest or sleep)

BCP: Birth Control Pills

BD: Baby Dance (sex)

Beta: HCG pregnancy test

BFN: Big Fat Negative (pregnancy test outcome)

BFP: Big Fat Positive (pregnancy test outcome)

BMS: Baby Making Sex

B/W, b/w: Bloodwork


CB: Cycle Buddy

CD: Cycle Day (which day of your menstrual cycle you are on)

CH: Crosshairs – the lines drawn on the chart to indicate ovulation

CM: Cervical Mucus, also known as cervical fluid. It is fluid produced by your cervix as you approach ovulation due to increased estrogen.

CNM: Certified Nurse Midwife

COH: Controlled Ovarian Hyperstimulation (method to induce ovulation by multiple ovarian follicles)

CS: Caesarean Section


DE: Donor Eggs

DH, DW: Dear Husband, Dear Wife

DD, DS: Dear Daughter, Dear Son

DIPI: Direct Intra-peritoneal Insemination (a form of artificial insemination in which sperm is injected into the peritoneal cavity)

DOR: Diminished Ovarian Reserve

DPO: Days Post-Ovulation

DPR: Days Post-Retrieval

DPT: Days Post-Transfer

DP3DT: Days Post 3-Day Transfer

DP5DT: Days Post 5-Day Transfer

Dx: Diagnosis


E2: Estradiol

EB, EMB: Endometrial Biopsy

EDD: Estimated Due Date

ENDO: Endometriosis

EPT: Early Pregnancy Test

ER: Egg Retrieval

ET: Egg Transfer

ETA: Embryo Toxicity Assay (test to determine ETF)

ETF: Embryo Toxicity Factor (If in excess, immune system might attack embryo and lead to miscarriage)


FBG: Fasting Blood Glucose

FI: Fasting Insulin

FF: Fertility Friend

FHR: Fetal Heart Rate

FP: Follicular Phase

FM: Fertility Mucus or Fertility Monitor

Frostie: Frozen Embryo

FSH: Follicle-Stimulating Hormone

FTTA: Fertile Thoughts to All


GD: Gestational Diabetes

GI: Gastrointestinal

GIFT: Gamete Intrafallopian Transfer (ART in which sperm and egg are mixed and then placed directly in fallopian tube)

GnRH: Gonadotropin-Releasing Hormone

GP: General Practitioner

GTT: Glucose Tolerance Test


HCG, hcg: Human Chorionic Gonadotropin

HMG, hMG: Human Menopausal Gonadotropin

HCP: Health Care Practitioner

HPT: Home Pregnancy Test

HRT: Hormone Replacement Therapy

HSC: Hysteroscopy

HSG: Hysterosalpingogram (Test to show if fallopian tubes are blocked)

HX: History


ICI: Intra-cervical Insemination

ICSI: Intra-cytoplamic Sperm Injection

IF: Infertility

IGTT: Insulin and Glucose Tolerance Test

IM: Intramuscular injections

INCIID: International Council on Infertility Information Dissemination

IOR: Immature Oocyte Retrieval

IR: Insulin Resistant

ITI: Intra-tubal Insemination

IUGR: Intra-uterine Growth Retardation

IUI: Intra-uterine Insemination

IVC: Intra-vaginal Culture

IVF/ET: In Vitro Fertilization and Embryo Transfer

IVF: In Vitro Fertilization

IVIg: Intravenous Immunoglobulin




LAD: Leukocyte Antibody Detection Assay

LAP: Laparoscopy

LH: Luteinizing Hormone

LIT: Leukocyte Immunization Therapy

LMP: Last Menstrual Period (start date)

LP: Luteal-Phase (Latter phase of menstrual cycle)

LPD: Luteal-Phase Defect (Luteal phase shorter than normal, believed to interfer with implantation of embryos)

LSP: Low Sperm Count

LUF, LUFS: Luteinized Unruptured Follicle Syndrome


MAI: Miscarriage after Infertility

MC, misc.: Miscarriage

MENTS: Subject Matter May Be Difficult to Read

MESA: Microsurgical Epidiymal Sperm Aspiration

MF: Male Factor

MMR: Measles-Mumps-Rubella Vaccine

MRI: Magnetic Resonance Imaging


NK: Natural Killer Cells

NORIF: Non-stimulated Oocyte Retrieval In (office) Fertilization

NP: Nurse Practitioner

NSA: Non-Surgical Sperm Aspiration


O, OV: Ovulation

OB: Obstetrician

OB/GYN: Obstetrician/Gynecologist

OC: Oral Contraceptives

OD: Ovum Donor, Ovulatory Dysfunction

OHSS: Ovarian Hyperstimulation Syndrome

OPK: Ovulation Predictor Kit

OPT: Ovulation Predictor Test

OTC: Over the Counter


P4. Prog: Progesterone

PA: Physician’s Assistant

PAI-1: Plasminogen Activator Inhibitor-1

PAF: Pregnancy After Infertility

PCO: Polycistic Ovaries

PCOD: Polycistic Ovarian Disease

PCOS: Polycistic Ovarian Syndrome

PCP: Primary Care Physician

PCT: Post Coital Test

PESA: Percutaneous Epididymal Sperm Aspiration

PG: Pregnant

PGD: Pre-implantation Genetic Diagnosis

PI: Primary Infertility

PID: Pelvic Inflamatory Disease

PLI: Paternal Leukocyte Immunization

PMS: Pre-menstrual Syndrome

PMN: Perinatal Mortality

POAS: Pee On A Stick

POC: Products of Conception

POF: Premature Ovarian Failure

PROM: Premature Rupture of Membranes

PTSD: Post-Traumatic Stress Disorder

PZD: Partial Zona Dissection



RE: Reproductive Endocrinologist

R-hFSH: Recombinant Human Follicle Stimulating Hormone

RI: Reproductive Immunologist

RIP: Reproductive Immunophynotype

ROS: Reactive Oxygen Species

RPL: Recurrent Pregnancy Loss

RSM: Recurrent Spontaneous Abortion

RX: Prescription


SA: Semen Analysis

SART: Society for Assisted Reproductive Technology

S/B, s/b: Stillbirth

SCORIF: Stimulated Cycle Oocyte Retrieval

SHG: Sonohysterogram

SI: Secondary Infertility

SLE: Systemic Lupus Erythematosus

SPA: Sperm Penetration Assay

SPALS: Subsequent Pregnancy After a Loss Support

S/S: Signs/Symptoms

STD: Sexually Transmitted Disease

SubQ: Subcutaneous Injection

SUZI: Sub-zonal Insertion


T1: Type 1 Diabetic – Juvenile Diabetes

T2: Type 2 Diabetic – Insulin Resistant, Adult Onset

T4: Thyroxine

TEBG: Testosterone-Estradiol Binding Globulin

TDI: Therapeutic Donor Insemination

TESA: Testicular Sperm Aspiration

TDI: Therapeutic Sperm Extraction

TET: Tubal Embryo Transfer

TL: Tubal Ligation

TORCH: Toxoplasmosis, Other, Rubella, Cytomegalovirus & Herpes Test

TR: Tubal Reversal

TRH: Thyroid Releasing Hormone

TSH: Thyroid Stimulating Hormone

TTC: Trying To Conceive

TTCAR: Trying to Conceive After Reversal

TX: Treatment

TZD: Thiazolidinediones


UR:  Urologist

US:  Ultrasound

UTI:  Urinary Tract Infection


V: Vasectomy

VR: Vasectomy Reversal


WBC: White Blood Count

WHR: Waist to Hip Ratio

WNL: Within Normal Limits




ZIFT:  Zygote Intra-fallopian Transfer