An “egg test” is the common name for ovarian reserve testing, a set of blood tests and ultrasounds that estimate how many eggs remain in your ovaries. These tests are most often used during fertility evaluations, particularly before IVF, to help predict how your body will respond to treatment. They do not measure egg quality, and they cannot tell you whether you’ll be able to get pregnant on your own.
What Egg Tests Actually Measure
Your ovaries hold a finite supply of eggs from birth, and that supply declines steadily with age. Ovarian reserve testing gives a snapshot of where you stand in that decline. The key word is “estimate.” These tests measure hormones and physical markers that correlate with egg count, but they’re indirect measures, not a literal tally of every egg left.
The American Society for Reproductive Medicine defines ovarian reserve as the number of eggs remaining in the ovary, or “oocyte quantity.” The tests are useful for predicting how many eggs a fertility clinic can retrieve during IVF stimulation. But the ASRM is clear that these markers are poor predictors of reproductive potential on their own, separate from age. In other words, a low result doesn’t mean you can’t conceive naturally, and a normal result doesn’t guarantee you can.
The Main Tests Involved
AMH (Anti-Müllerian Hormone)
AMH is a hormone produced by the small follicles inside your ovaries, which are the tiny sacs that hold immature eggs. The more follicles you have, the more AMH circulates in your blood. As your egg supply shrinks with age, AMH levels drop. By menopause, AMH falls to zero.
AMH is the most convenient of the egg tests because it can be drawn on any day of your menstrual cycle. General lower-limit benchmarks by age: around 3.0 ng/mL at age 25, 2.5 ng/mL at 30, 1.5 ng/mL at 35, 1.0 ng/mL at 40, and 0.5 ng/mL at 45. Levels below 1.6 ng/mL predict fewer eggs retrieved during IVF, and levels below 0.4 ng/mL are considered severely low.
FSH (Follicle-Stimulating Hormone)
FSH is a hormone your brain’s pituitary gland produces to signal your ovaries to prepare an egg for ovulation each month. When fewer eggs remain, your ovaries need more prodding, so your body ramps up FSH production. Higher FSH levels on a blood test suggest your ovaries are working harder to do the same job, which points to a smaller remaining egg supply.
Unlike AMH, FSH levels fluctuate throughout your cycle. The test needs to be done on day 2 or 3 of your period (counting the first day of full bleeding as day 1) to get an accurate baseline reading. Your doctor may also check estradiol at the same time, since an elevated estradiol level early in the cycle can artificially suppress FSH and mask a problem.
Antral Follicle Count (AFC)
This isn’t a blood test but a transvaginal ultrasound. A technician counts the small, visible follicles on each ovary early in your cycle. Each of those follicles contains an immature egg that could potentially respond to fertility medication. A higher count generally signals a larger reserve. Combined with AMH and FSH, the AFC gives fertility specialists a more complete picture of how your ovaries will likely respond to stimulation.
What These Tests Cannot Tell You
The single biggest misconception about egg tests is that they measure fertility. They don’t. Ovarian reserve testing tells you something about quantity, not quality. A person could have perfectly normal AMH and follicle counts but produce eggs with chromosomal problems that prevent fertilization or healthy pregnancy. Conversely, someone with low AMH may still conceive without assistance.
There is no blood test or ultrasound that checks egg quality. The only way to assess quality is during an IVF cycle itself, when embryologists can observe how eggs fertilize and develop. This is why the ASRM recommends against using ovarian reserve markers as a standalone fertility test for women who aren’t already experiencing infertility. A low AMH at a routine check-up is not a diagnosis of infertility.
Age remains the single strongest predictor of egg quality. A 28-year-old with low AMH typically has better egg quality than a 42-year-old with normal AMH, even though the younger person’s numbers look worse on paper.
When and Why These Tests Are Ordered
Egg tests are most commonly ordered in three situations: before starting IVF or other fertility treatments, during an infertility evaluation when a couple hasn’t conceived after a year of trying (or six months if the woman is over 35), and when someone is considering egg freezing and wants to know what kind of response to expect from ovarian stimulation medications.
The results help fertility specialists choose medication doses and set realistic expectations. If your reserve is high, you may respond strongly to stimulation and need careful monitoring to avoid ovarian hyperstimulation. If it’s low, your doctor may adjust the protocol or discuss the likelihood of needing multiple retrieval cycles.
Preparation and Timing
AMH can be drawn any day of your cycle with a simple blood draw, no fasting required. FSH and estradiol need to be tested on cycle day 2 or 3, so you’ll need to schedule the appointment around your period. An antral follicle count is also done early in the cycle.
If you have an IUD, mention it before testing. An IUD won’t affect your future fertility, but it can skew certain test results. Your provider may ask you to have it removed and wait before running the tests. Hormonal birth control can also affect AMH and FSH readings, so your doctor will advise whether to stop it temporarily.
Cost of Egg Testing
When ordered as part of a fertility workup, egg tests are often covered by insurance, depending on your plan and state. Without insurance, the individual blood tests are relatively affordable. AMH typically costs $78 to $108, and FSH runs $68 to $98 at a fertility clinic. An ultrasound for antral follicle count costs more, usually a few hundred dollars, though prices vary widely by location.
At-home AMH test kits have become popular in recent years. These involve a finger-prick blood sample mailed to a lab. They generally cost $100 to $200 and give you an AMH number, but without clinical context, that number can be easy to misinterpret. A low result from an at-home kit can cause unnecessary panic, and a normal result can create false reassurance. Either way, the result is more useful when reviewed alongside FSH, an ultrasound, and your full medical history.