AMH tells us quantity, not quality

Anti-Müllerian hormone (AMH) is produced by developing follicles in the ovaries, so it gives us insight into ovarian reserve, meaning the number of potential eggs.

Higher AMH generally reflects more follicles, while lower AMH reflects fewer.

But here’s what often gets missed:
AMH tells us nothing about the quality of those eggs.

And when it comes to conception and a healthy pregnancy, quality matters just as much, if not more, than quantity.

We’ve seen women with low AMH conceive naturally, and women with high AMH struggle, because fertility is never just about one number.

AMH is really showing us if your eggs are “talking”

One of the most helpful ways to understand AMH is to think of it as a communication signal.

AMH is produced by your developing follicles, so when we measure it, we’re essentially asking:
​how much are your follicles actively communicating right now?

Higher AMH means there are more follicles sending signals.
Lower AMH means fewer follicles are actively “talking.”

But this is where context matters so much.

Just because there are fewer follicles communicating does not mean the conversation has stopped. It also doesn’t tell us anything about how strong or healthy that communication is.

And on the flip side, more follicles talking doesn’t always mean better outcomes. In cases like PCOS, we often see a lot of follicles “talking” at once, but the signaling can be disorganized, which can actually interfere with ovulation.

So AMH is not telling us:

• if ovulation is happening well
• if hormones are rising and falling at the right time
• if the egg being released is high quality
• or if the body is prepared for implantation

It’s simply telling us how many follicles are in the conversation.

This is why we need to zoom out

Fertility is not just about whether your eggs are talking, it’s about whether the entire system is communicating clearly.

We need to understand:

• Is the brain signaling properly with FSH?
• Is estrogen rising appropriately as follicles develop?
• Is LH triggering ovulation at the right time?
• Is progesterone strong enough to support the second half of the cycle?

Because even if only a few follicles are “talking,” if that communication is clear, supported, and well-timed, ovulation and pregnancy are absolutely still possible.

And that’s the part that often gets missed when we focus too heavily on AMH alone.

Your hormones are meant to work together

Your cycle is a conversation between your brain and your ovaries, and AMH is only one voice in that conversation.

• FSH (follicle stimulating hormone) is your brain signaling your ovaries to begin preparing follicles for ovulation.
• LH (luteinizing hormone) is what triggers ovulation when estrogen peaks.
• Estradiol supports follicle growth and ovulation, while also helping build the uterine lining.
• Progesterone supports ovulation, the luteal phase, and ultimately implantation.

Each of these hormones gives us insight into a different part of the process.

When we look at them together, patterns start to emerge that help us understand why conception may not be happening as expected.

Why one lab is not enough

One of the biggest mistakes we see is relying on a single AMH value to make decisions. Hormones shift from cycle to cycle, which means a single snapshot can be misleading.

To truly understand what’s happening, we want to look at:

• FSH, LH, estradiol, and progesterone
• Across at least 3 cycles (ideally 3–6 months)

This allows us to see trends, not just isolated numbers.

For example, FSH can begin rising years before menopause, which can give us early clues about ovarian signaling long before cycles stop. LH patterns can tell us whether ovulation is being properly triggered. Progesterone levels can show us if ovulation was strong enough to support implantation.

This is where we move from guessing to actually understanding what your body is doing.

The piece that often changes everything: progesterone

If there’s one hormone we pay especially close attention to, it’s progesterone.

Progesterone is not just important after ovulation, it actually plays a role before ovulation as well, helping signal and support the process.

It supports the uterine lining, helps regulate the cycle, and even influences future cycles because of how it impacts follicle development.

It also has a unique ability to support multiple systems in the body, which is why when progesterone is low or dysregulated, we often see ripple effects in mood, sleep, cycle health, and fertility.

The takeaway

AMH can be a helpful marker, but it is never meant to stand alone.

Your fertility is not defined by one lab value, and it is not a fixed outcome.

When we zoom out and look at the full hormonal picture over time, we’re able to identify patterns, support the body more effectively, and create a much clearer path forward.

This is exactly why we focus on comprehensive testing inside our fertility work, because when you understand what your body is actually doing, you can make decisions from a place of clarity instead of fear.

If you are feeling discouraged about a suboptimal AMH, we hope this gives you some context!

Here is another blog post on AMH and how to build a solid foundation for egg quality that you may find helpful.

reminder: i’m currently accepting people into my Nurture Your Fertility program. you can learn more here about the program and fill out an application!