Told Donor Eggs? What Your Fertility Workup Left Out
For most people, donor eggs are at the bottom of the list.
It is not where you wanted to land. And if you are here, reading this, something in you already knows that.
Everyone around you has been telling you to go ahead. The clinic. The message has been the same at every step. This is the path, keep moving.
But something in your own head has been telling you it is not that simple. That a piece is missing. Before you accept donor eggs, there has to be more to look at.
That instinct is why you are reading this. And that instinct is right.
You have probably already been doing the work. You have read the books, changed your diet, and taken the supplements. When something showed up off on a lab, you were given something for it. Your TSH was a little high, so you were put on medication. Your cortisol was off, so you were told to lower your stress. Each time, the marker got a response, and each time the instruction was the same. Manage it, and keep going.
What nobody did was stop and ask why. Why was the TSH off? What was driving the cortisol? You are the one asking that question now, because you are the one who sensed it mattered.
This is what a complete look includes. This is worth investigating before you decide to pursue donor eggs.
Listen to the Episode
What A Complete Look Includes
This is not a list of things for you to go and run on your own. If you want someone to look at all of it with you, that is what a Functional Fertility Second Opinion is for. More on that at the end.
Most of it sits outside a standard fertility workup. Your clinic may run a few of these, but most of them are not part of how a fertility clinic is set up to work. That is not a criticism. Your REI is an expert in reproductive medicine and the procedures that go with it. What follows is a different lens, focused on what is driving the markers rather than the markers alone, and it has to be a fertility-specific lens, not a general one.
So go down the list. For each one, ask two things. Was this ever looked at in my case? And if it was, was it investigated, or was it managed and moved past?
Where the answer is no, that is not a gap in you. It is a gap in what was investigated.
The full thyroid panel, not just TSH
A TSH on its own is not a thyroid panel. It is one number, and it is often the only thyroid number a fertility workup runs. A complete look includes free T3, free T4, reverse T3, and thyroid antibodies. The antibodies matter most here. Autoimmune thyroid activity is associated with low AMH and diminished ovarian reserve, and it can be present while your TSH sits in range. If you were put on thyroid medication without antibodies ever being run, the number was treated, and the autoimmune question was never asked. We go deeper into this in Thyroid and Fertility: Low AMH, DOR, and POI.
The gut, including H. pylori
Your gut is where you absorb the nutrients that egg quality depends on. Iron, B12, zinc, the building blocks. An infection like H. pylori can impair that absorption without obvious gut symptoms, which is how ferritin reads at 20 while you are told iron is fine. A standard fertility workup does not test for it. If your iron, B12, or zinc have been flagged as low or borderline and nobody asked why you are not absorbing them, this is the layer underneath. We cover the gut pattern in depth in Told Donor Eggs After Failed IVF? The Gut Pattern Your Clinic Did Not Test.
Hidden food sensitivities
This is not about a restrictive diet for life. It is about whether something you are eating is driving inflammation that affects egg quality, ovulation, and miscarriage risk. Non-celiac gluten sensitivity is a pattern we see often in women who have been recommended donor eggs, and it does not show up on a celiac test. If you have been told your celiac screen was negative and left it there, that is not the same as ruling out a sensitivity. More on this in Egg Health and Gluten: A Surprising Link.
Medications you are already on
Some common medications affect the nutrients and hormone precursors on which fertility depends. Statins, as one example, lower cholesterol, and cholesterol is the raw material your body uses to make reproductive hormones. This is not a reason to stop anything. It is a reason to know whether something you take every day is part of what is happening. We look at one version of this in Cholesterol, Statins, and Fertility.
The vaginal microbiome
The bacteria in the vaginal microbiome affect implantation and miscarriage risk. The imbalances that matter most are often silent, which means you can have one without symptoms and without it ever being tested. It is rarely checked before a transfer unless you present with an obvious infection. If you have had failed transfers and this was never assessed, it is a piece that was left out. We cover what to test before a transfer in Before Your IVF Transfer, Test This First.
The seminal microbiome
A standard semen analysis measures count, motility, and morphology. It does not look at the bacteria and inflammation in semen, which can affect implantation and embryo development even when the analysis comes back normal. This is one of several things on the male side that a standard workup leaves out, covered in our featured article on Male Factor Fertility.
The male partner's full bloodwork
Most workups stop at the semen analysis on his side. His blood sugar, thyroid, hormones, ferritin, and inflammatory markers are part of the equation too, because the embryo comes from both of you. A normal semen analysis is not the same as a thorough look at his health. The full male side is covered in the Male Factor Fertility article.
Sperm DNA fragmentation
This is separate from the basic semen analysis, and it is the one most often left out. It measures the integrity of the DNA inside the sperm, and it is associated with failed fertilization, poor embryo development, and miscarriage, even when count, motility, and morphology all look normal. If you have had embryos arrest or fail to develop, and his analysis was called normal, this is a question worth raising. The detail is in Male Factor Fertility.
Cross-contamination between partners
Partners pass infections back and forth. H. pylori can be transmitted through saliva, and reproductive infections through intercourse. If it shows up in one of you and only one of you is addressed, it can keep cycling back, transfer after transfer. We go more into this in our article on Implantation Failure.
The nervous system and the HPA axis
This is the one most likely to have been managed but never investigated. You were told your cortisol was off, or that stress was a factor, and you were told to meditate. But the cortisol pattern itself, measured across the day, tells you whether your HPA axis is dysregulated, and that sits upstream of ovulation, progesterone, and thyroid function. Telling someone to relax is not the same as looking at the pattern and asking what is driving it. We go into this in our featured article on Nervous System Load and Fertility.
Liver function and hormone clearance
Your liver clears used hormones out of circulation. When it is sluggish, hormones can recirculate and contribute to the imbalance you are trying to correct. Mildly elevated liver markers often get called normal and left alone. In the context of fertility, how efficiently you clear hormones is part of the equation. More in Could a Sluggish Liver Be Holding You Back.
How Many Were Investigated In Your Case
Go back through the list. How many were actually investigated rather than managed and moved past?
If the answer is most of them, you are in a strong position to make your decision.
If the answer is few or none, that is the gap you sensed. The instinct that brought you here was pointing at something real. And the gap does not close by going back to the same workup and asking for a different answer. It closes with a team that looks at all of it together, in a targeted way, and reads it through a fertility lens.
That is the difference between managing markers and investigating them. Between a snapshot and an investigation.
Want The Research Behind Each One
Each of these has research behind it, and we go through it in depth in our companion article, Before Donor Eggs: 11 Things Most Clinics Miss in the Workup. That is the place to go for the studies, the mechanisms, and the detail behind every item here.
Before You Decide
Some women go through a complete functional fertility investigation and still move to donor eggs. That is a valid path, and for some women it is the right one. The difference is that the decision gets made on the full investigation, not on the markers that were managed and never looked into.
If you want our eyes on your specific situation, a Functional Fertility Second Opinion is where that happens. It is a free 45-minute call where I review your labs, your history, and your partner's results with you. You leave knowing what your biology has been telling you and what your next decision could be.
We work alongside your medical team, not instead of them.
👉 Book a Functional Fertility Second Opinion here.
👉 Download What Your Clinic Missed: Email hello@fabfertile.ca, subject line MISSED
The guide walks through what a complete workup looks at, so you can see the gap for yourself.
Related Reading
Told Donor Eggs Are Your Only Option? Ask This First
How Long Should I Try With My Own Eggs Before Donor Eggs?
Told Donor Eggs After Failed IVF? The Gut Pattern Your Clinic Did Not Test
Multiple Failed IVF And Told Donor Eggs? The System Your Clinic Never Looked At
Before Donor Eggs: 11 Things Most Clinics Miss in the Workup
About the Host
I'm Sarah Clark, founder of Fab Fertile and host of Get Pregnant Naturally, a podcast with over one million downloads. My functional fertility team works with couples navigating low AMH and failed IVF, reviewing functional lab results, gut microbiome, food sensitivity, vaginal microbiome, nutrigenomics, HTMA, DUTCH, toxin testing, and bloodwork alongside nervous system work, to help identify patterns that may not have been considered. We work alongside your medical team, not instead of them.
Subscribe to Get Pregnant Naturally for weekly episodes on fertility optimization, IVF preparation, and the lab work your doctor probably isn't running.
By Sarah Clark, Founder, Fab Fertile | Host of Get Pregnant Naturally Podcast | Author of Fabulously Fertile
Last Reviewed June 2026
