Women are born will all of the eggs they will ever have, and over time, most of the eggs die without ever being ovulated. In a regular menstrual cycle, a woman will ovulate one mature egg and all of the other immature eggs will naturally die. Women peak in fertility in their early to mid-20’s and then begin a gradual loss in fertility over time that comes more pronounced in the mid-late 30’s.

Fertility Assessment Process:

  • Call SRM to schedule an Antimullerian Hormone (AMH) blood test. This test can be done at any time in your menstrual cycle and does not matter if you are on any hormonal birth control method. AMH is a hormone found only in ovarian follicles (eggs) and correlates with egg supply.
  • The second appointment is a phone call with an Advanced Practice Provider to review the results and briefly discuss options.
  • This test does not provide a full fertility evaluation. If you are trying to conceive, please schedule a New Patient Visit for a complete evaluation and consultation.

This chart illustrates the likelihood of pregnancy per month when actively trying to conceive based on age. It also explains the rise in miscarriage rates as women get older because of the increased number of abnormal eggs, the primary reason for miscarriages.

Ovarian Reserve / “Egg Supply”

Component: Data Table Block


Age303540>42
% Pregnancy/month15 - 20%10 - 15%5 - 8%4%
% Miscarriage15 - 20%20 - 25%30 - 40%>50%
%Genetically Abnormal Embryos25 - 30%40 - 60%70 - 80%>80%
Age 30 35 40 >42
% Pregnancy/month15 - 20%10 - 15%5 - 8%4%
% Miscarriage15 - 20%20 - 25%30 - 40%>50%
%Genetically Abnormal Embryos25 - 30%40 - 60%70 - 80%>80%

These pictorial ovals demonstrate an ovary and shows how an ovary at age 30 is much larger than an ovary at age 45. It also highlights how the total number of eggs decrease with age and the total number of abnormal eggs increase with age. The dots represent the follicles that can be seen on ultrasound, the half-shaped moon represents the overall egg supply that cannot be seen on ultrasound.

Follicles seen on ultrasound reflect a small fraction of the residual pool.

*Note, this illustration is an average. The absolute number and quality of eggs diminishes with age, but the number of follicles is variable for every woman. A younger woman may have a lower number of antral follicles but the quality is still good versus an older woman with a higher number of eggs but poor egg quality.

AMH Results

  • AMH >2 is considered within normal limits.  If not planning conception or egg freezing now, should consider re-assessing ovarian reserve in one year.
  • AMH 1-2 is borderline and is consistent with a mild or moderate decline in egg quantity. The likelihood of having a live birth is highest if attempt to conceive or freeze eggs in the near future.  If not successful within six months, recommend scheduling a new patient visit to discuss whether additional testing or fertility treatment may be beneficial.
  • AMH <1 is consistent with a significant decline in egg quantity.  Recommend consultation with a reproductive endocrinologist to discuss options.

Reproductive aging is one of the main predictors of whether or not a woman will be able to conceive.   There is an expected natural decline in fertility with a woman’s advancing age. The rate of this decline, however, cannot be predicted for a given individual.

A Fertility Assessment is a test for ovarian reserve / egg supply ONLY and does not evaluate for any other potential cause of infertility including problems with ovulation, the uterus, fallopian tubes, sperm quality, etc. that would be discussed at a new patient visit.

A Fertility Assessment is for women who are not yet trying to conceive. If you and a partner have been attempting pregnancy for >6 months (if age 35 of older) or >12 months (younger than 35) please schedule a New Patient Visit for a full fertility workup.

Call SRM to schedule your Fertility Assessment at 877.777.6002.