The surrogacy process involves a different people with different specialties.  A lot of terms and abbreviations are used that can be confusing, which is why Omega put together this authoritative surrogacy dictionary to make understanding easier.



Body Mass Index (BMI)

BMI is an indicator that attempts to quantify the amount of tissue mass (muscle, fat, and bone) in an individual, and categorizes that person as underweight, normal weight, overweight, or obese based on that value.




The female gamete or sex cell that contains the genetic information to be transmitted by the female.



The fertilized egg after it has begun the process of cell division.

Embryo Transfer

Embryo Transfer

The medical procedure where the embryo is placed inside the uterus.




When a sperm and an egg come in contact and an embryo is produced.




A sex cell that belongs to either a man or a woman that contains genetic information that passes along to their children.

Gestational Surrogate

Gestational Surrogate

A Gestational Surrogate is a woman who carries a pregnancy with a child who is not genetically related to her. She becomes pregnant through invitro fertilization, with an embryo that includes the father’s (or donor’s) sperm and the mother’s (or donor’s) egg.

Gestational Surrogate

Gestational Surrogacy Agreement (GSA)

A Gestational Surrogacy Agreement (GSA) is a legal document whereby intended parents, a gestational carrier (gestational surrogate) and her partner / spouse enter in an agreement.  The agreement states that the surrogate will have the intended parents’ child with no intention of keeping the baby.  All rights and obligations for all parties involved are included in the GSA.

Gestational Surrogate

Gestational Surrogate (or Gestational Carrier)

A woman who carries and delivers a child without providing her egg, for another couple or person. This term is often abbreviated as GS or GC.

Gestational Surrogate Profile

Gestational Diabetes

Gestational diabetes is high blood sugar (glucose) that develops during pregnancy and usually disappears after the baby’s birth.


Intended Parent

The person who cannot become pregnant and/or complete a pregnancy and chooses surrogacy as their family creating option.

Intended Parent Questionnaire

The first step of the Intended Parents’ Surrogacy Journey, where they present themselves to their future surrogate.


Intrauterine Device (IUD) or Intrauterine Contraceptive (IUC)

An intrauterine device or an intrauterine contraceptive is a small device inserted in a woman’s uterus to prevent pregnancy.

Intrauterine Insemination (IUI)

Intrauterine insemination (IUI) is a fertility treatment where sperm is directly inserted inside a woman’s uterus.


In Vitro Fertilization

In Vitro Fertilization (IVF) is an assisted reproduction method that involves combining an egg with sperm in a laboratory.


medical records

Medical Records

Medical records are the documents that include your medical examinations, diagnosis and treatment history.


Pre-Birth Order

Identification document, much like a birth certificate, which designates the Intended Parents as the unborn baby’s parents.


Preeclampsia is a pregnancy complication characterized by high blood pressure and signs of damage to another organ system, most often the liver and kidneys.




The male gamete or sex cell that contains the genetic information to be transmitted by the male.



Surrogacy is a family creating option in which a woman carries an embryo to full term for another couple.  Also see: Gestational Surrogacy & Traditional Surrogacy


Traditional Surrogacy

A Traditional Surrogate is a woman who carries a pregnancy with a child who is genetically related to her. She becomes pregnant through Intrauterine Insemination (see definition) using the father’s (or donor’s) sperm.

Tubal Ligation

Tubal Ligation is a contraceptive method where a woman’s fallopian tubes are tied, to prevent pregnancy.  This is also known as “having your tubes tied.”