Immune Fertility Care on Long Island

When pregnancies start and don't continue

If you have had more than one loss, or a euploid embryo that failed to implant, or a workup that came back normal after everything you have been through, you have probably run into two opposite answers online. One says hidden immune dysfunction is the explanation for everyone. The other says immune testing in fertility is meaningless. Neither is much help.

The honest position is more specific: immune and inflammatory factors matter in some cases, they are genuinely under-investigated in others, and they are over-sold in a third group. Sorting out which one you are in is the entire job of this page.

Your immune system is supposed to be active

The framing most people arrive with is that the body is "attacking" or "rejecting" the pregnancy, and that the goal is to suppress the immune system. That is not how implantation works.

An embryo carries half of your partner's DNA. On paper that looks foreign — but a healthy early pregnancy is not the immune system switching off. It is the immune system changing jobs. Natural killer cells in the uterine lining shift into a specialised form that helps remodel blood vessels. T cells rebalance between defence and tolerance. Cytokines coordinate the timing so the embryo can embed and connect to the maternal blood supply.

In other words, early pregnancy is an active immune partnership. Problems can appear on either side of it: signalling skewed toward attack at the moment tolerance is needed, or a system too permissive to handle what it should. The question is never "do I have an immune system." It is whether there is a measurable pattern of dysregulation working against implantation and early pregnancy.

What is well established, and what is not

We think you deserve the state of the evidence rather than the version that sells best.

Established, and medically managed. Antiphospholipid syndrome (APS) is an autoimmune clotting condition, diagnosed by specific antibodies plus clinical criteria, and it is a recognised cause of recurrent pregnancy loss. Active or uncontrolled systemic autoimmune disease — lupus, uncontrolled thyroid autoimmunity, and others — can also raise miscarriage risk. These are physician-managed conditions. Treatment belongs with your REI, maternal-fetal medicine, rheumatology, or haematology team, and standard care exists for them. Our role in those cases is supportive and coordinated, never a substitute. Autoimmune issues and recurrent miscarriage

Real but still contested. Uterine NK cell activity and numbers, Th1/Th2 and Th17/Treg balance, and alloimmune factors between partners are areas of active research where the evidence is genuinely mixed. Some clinics run broad panels and treat empirically with steroids, IVIG, or intralipids. Others decline, citing thin or conflicting data. Both camps can cite something. What we will not do is present a contested test as settled science, or an expensive empiric treatment as the obvious next step, because it isn't.

A worked example of why this matters. BCL-6, measured by ReceptivaDx, has a reasonable biological rationale — it is linked to progesterone resistance in the endometrium and to endometriosis-associated inflammation. Early data looked compelling. More recent, larger, better-controlled work, including a 2022 Fertility and Sterility study in a general normal-responder IVF population, did not consistently replicate those findings, and a separate study in recurrent loss and recurrent implantation failure found no significant difference between treated and untreated BCL-6-positive patients. Expression also varies with how the sample was prepared. That does not make the test useless — in a case where endometriosis is genuinely suspected, it can inform a decision. It does mean a positive result is not, by itself, a reason to book a laparoscopy. BCL-6 positive on ReceptivaDx? What to do next

Not controversial at all. Chronic low-grade inflammation and metabolic strain change immune behaviour at the implantation site. That is where this work is most practical, and it is the overlap with Metabolic fertility care — insulin resistance, blood sugar swings, poor sleep, and sustained stress physiology all push the local environment toward alarm rather than tolerance.

When a closer look is reasonable

Not every patient needs an immune workup, and we would rather say that plainly than sell one. A deeper evaluation earns its place when the history points there:

• Two or more pregnancy losses, particularly early loss with no chromosomal explanation. What causes chemical pregnancies after a positive test?
• Repeated implantation failure, or euploid embryos that graded well and still didn't take. Why does implantation keep failing?
• Loss after a detected heartbeat.
• Endometriosis, or suspected endometriosis with pain and inflammatory symptoms. Does acupuncture for endometriosis fertility help?
• Recent excision surgery, where the window afterwards is frequently wasted. After excision surgery: the 90-day window most women waste
• Thyroid antibodies, or thyroid function that has been called borderline for years.
• A personal history of autoimmune disease, or a family history of autoimmune or clotting conditions.
• Symptoms outside the reproductive system that nobody has connected: persistent fatigue, joint pain, rashes, dry eyes or mouth, digestive symptoms, unexplained anaemia.
• Unexplained infertility where the standard workup simply stopped early. Fertility immune system testing explained

The mistake we see most

People expect the answer to arrive as one dramatic abnormal result. It rarely does. The real picture is usually cumulative.

Borderline thyroid antibodies. Mild insulin resistance. Subtle inflammation. Irregular ovulation. One failed transfer, then two early losses. No single item on that list looks definitive on its own, and each one gets waved off in isolation. Together they describe a fertility environment under strain — and that pattern is the finding. When fertility problems keep repeating, the repetition itself is diagnostic: it says something at system level deserves a closer look.

The reverse mistake is just as costly: testing everything, finding a handful of borderline values, and treating them all. Not every positive antibody is clinically meaningful, and a result only matters when it fits your history and leads to a realistic plan.

What an evaluation may include

The panel depends on the case, because there is no universal fertility immune panel that fits everyone. A thoughtful review usually looks at the overlap between immunity, inflammation, clotting, hormones, and metabolic function — which in practice may mean thyroid antibodies, antiphospholipid antibodies, antinuclear antibodies, inflammatory markers, and clotting-related markers, alongside the metabolic picture, and in selected cases endometrial or receptivity testing where a specific question needs answering.

Then the harder part: reading it in context. Your pregnancy history, symptoms, family history, diagnoses, medications, cycle pattern, lining behaviour, imaging, and embryo information if IVF has been part of your path. A mild abnormality that general medicine reasonably ignores can matter in a fertility case when it matches the rest of the story. Where a finding needs medical management, it goes to the physician who should be managing it — we will tell you which one, and why.

How we support the environment

Where the immune and inflammatory picture is the leading edge of a case, the support work is aimed at the conditions implantation depends on: circulation and pelvic blood flow, inflammatory load, sleep, stress physiology, nutrient status, and blood sugar stability. Acupuncture and Chinese herbal medicine are used inside that plan — for blood flow, pain, sleep, and stress regulation — not as an immune treatment and not as a substitute for medical management of a diagnosed condition. Fertility blood flow support that makes sense · How to support implantation naturally

We do not offer steroids, IVIG, or intralipids, and we do not tell you to stop a medication your physician prescribed. If your care team's plan conflicts with something in ours, their call wins.

How the work runs

1. A free 10-minute triage call. Its only purpose is to find out whether we can help. If we can't, we say so and point you elsewhere.

2. The Metabolic & Immune Fertility Evaluation — $100 ($50 to hold the appointment, $50 on arrival). Our full fertility care pricing is published, including sessions, the Fertility Audit and every care plan. A structured review of your history, prior testing, prior cycles, losses, and symptoms, and a clear read of what we would prioritise and in what order.

3. A month-by-month plan, usually 12–24 weeks, with the immune and inflammatory pieces sequenced alongside the metabolic ones rather than in competition with them.

4. A review at the end of the window — what changed, what didn't, and whether continuing is genuinely worth your money. Sometimes the honest answer is no, and you will hear it.

5. Coordination with your OB/GYN, REI, or specialist throughout.

What we track

We do not publish success rates — that number depends entirely on which patients a clinic accepts, so it tells you almost nothing about your own case. What we do instead is agree at the start on what "working" would look like for you, and then watch it: inflammatory and thyroid markers retested at a set interval, cycle regularity, pain and other symptom load, lining behaviour, and how you actually feel through a cycle. It is your data, and you see the same tracking we do.

Your partner belongs in this too

Sperm DNA fragmentation is driven substantially by oxidative stress and inflammation, which makes it part of this conversation rather than a separate one — and it is measured by a test a standard semen analysis does not include. In roughly half the cases we see there is a male factor component, and it is often the piece nobody has examined closely. It is also frequently the faster side to move. Semen analysis versus sperm DNA fragmentation

What we will not do

Promise a pregnancy or a live birth. Quote you a success rate. Interpret your labs by email. Tell you the immune system is the answer before we've looked. Recommend surgery on the strength of one biomarker. Or ask you to choose between us and your medical team — that choice isn't necessary, and anyone asking you to make it should worry you.

East to West Fertility is the fertility division of East to West Wellness Center, an acupuncture and functional medicine clinic in Huntington, NY, serving Long Island and NYC since 2015.