Failed First IVF: What Next, According to a Doctor

If you are reading this after a failed first IVF transfer, the first thing I want you to hear is that this is not your fault, and it is not a verdict on your fertility. You spent the money, you did the injections, you held your breath for two weeks, and the line said no (or it said yes and then it said no), and right now medicine is the last thing you want to read about. Take this in slowly. The failed first IVF, what next question can wait until you can think again.

I tell my patients that a failed transfer is a data point, not a verdict. The work between cycles is to read that data point carefully (embryo, endometrium, immunology, technique) before changing a single thing about cycle two. Cycle one taught us something real. Cycle two is where we use it. That is the lens this post is written in.

What about the part that is not clinical?

A failed transfer is a pregnancy loss in every meaningful sense. A negative beta after a fresh or frozen transfer, a biochemical pregnancy where hCG rose and then fell, a clinical loss after a sac was seen on ultrasound: all of these are losses, and the grief is real and not proportional to gestational age. The world will ask you whether you are okay before your nervous system has any answer for that question. You are allowed to not be okay for a while.

Most clinics recommend at least one full menstrual cycle of recovery before any workup, and one to three cycles before the next transfer. There is no medical reason to "get back on the horse" this month, and there is a real reason not to. Your body has been on supraphysiological hormones for weeks. Your sleep, your appetite, your concentration, your relationship: those need time. The cumulative live-birth math does not change in the next thirty days. Your nervous system might.

If you are not okay tonight, please look at our setback library at when-things-dont-go-to-plan/grieving-a-failed-transfer. It was written for this exact evening. The clinical content below will still be here when you are ready.

After a failed first IVF, what does the cycle tell us?

A single failed transfer of one good-grade embryo is statistically expected. Even euploid blastocyst transfers run roughly 50-65 percent live-birth rates per transfer, varying by age, lab, and clinic. That means roughly one in three transfers of a chromosomally normal embryo does not produce a live birth even when nothing is wrong with the patient. The first failed transfer is, in most cases, within the normal distribution of outcomes, not a signal that anything is broken.

That framing matters because of what comes next. One failed transfer is not recurrent implantation failure. The 2023 ESHRE good practice recommendations redefined RIF as failure to achieve a clinical pregnancy after transfer of at least three high-quality embryos, or the equivalent number of euploid embryos, in a person under 40.¹ That definition exists precisely so we do not over-investigate. Two losses inside expected probability are not the same as RIF. Workup is appropriate. Aggressive add-ons after a single failed transfer are not.

It also matters which kind of failed transfer this was, because each one routes to a different workup:

• Failed implantation: no rise in hCG. Beta is negative on the test day. The embryo never attached, or attached and arrested very early.
• Biochemical pregnancy: beta rose, then fell, with no gestational sac seen. Implantation happened. Something went wrong in the first one to three weeks.
• Clinical loss: sac and possibly heartbeat seen on ultrasound, then loss. This is usually counted and investigated as a miscarriage, not as a transfer failure, and the workup overlaps with recurrent pregnancy loss medicine rather than RIF medicine.

Tell your RE which of these happened. The terms matter for the workup. If your clinic is using the words interchangeably with you, that is your first thing to clarify before the lessons-learned visit.

What five-bucket workup do REs run between cycles?

When I look at a cycle that did not work, I think in five buckets. A good lessons-learned visit walks through all five, even if you only end up changing one thing.

Embryo factor

The first question is what we transferred. Was the embryo PGT-A tested? If yes, was it euploid, mosaic, or untested? What was the day of biopsy and freeze: a day 5 blastocyst, a day 6, a day 7? What was the grade, for example a 4AA versus a 3BB? Day 5 embryos have higher implantation potential than day 6 or day 7 on average, and grade correlates loosely with implantation though imperfectly.

If the embryo was untested, the most likely cause of a failed transfer in someone over 35 is aneuploidy. In an under-35 patient with a good-quality untested embryo, the failure rate per transfer is still meaningful but the math shifts toward endometrial and technique factors as you go younger.

If the embryo was euploid and failed, the conversation shifts harder toward the next four buckets. A euploid embryo that does not implant is the most common reason a workup is broadened.

Endometrial factor

The lining at transfer matters. Most clinics target an endometrial thickness of seven millimeters or more with a trilaminar pattern on transfer day. Thin lining (under seven) is associated with lower implantation rates, though the threshold is debated and some patients implant successfully at six millimeters with normal pattern.

Beyond thickness, we look at the cavity. A saline-infusion sonogram (SIS) or hysteroscopy checks for polyps, submucosal fibroids, Asherman adhesions, and chronic endometritis. Chronic endometritis, silent inflammation of the endometrium, is present in roughly 30 percent of women with recurrent implantation failure in some series and treatable with antibiotics.⁵ If your clinic has not run an SIS or hysteroscopy and you are about to do cycle two, ask whether one is indicated.

Hydrosalpinx, a fluid-filled, blocked fallopian tube, halves IVF success rates and should be ruled out or treated with salpingectomy or proximal occlusion before another transfer. The salpingectomy benefit is one of the strongest findings in the IVF literature.⁶

Immunology and thrombophilia

This is the bucket the add-on industry sells hardest. Be careful here.

There are a few tests that have actual evidence. Antiphospholipid syndrome screening (lupus anticoagulant, anticardiolipin, beta-2 glycoprotein) is reasonable in recurrent loss. Thyroid screening with a TSH target under 2.5 in someone trying to conceive, prolactin, and vitamin D are inexpensive, treatable when abnormal, and worth checking if not recently done.

What is not evidence-based: natural killer (NK) cell testing as a routine workup item. ESHRE 2023 did not include it in recommended workup.¹ ASRM's 2018 immunotherapy guideline advised against routine immune-modulating treatments (intralipids, IVIG, steroids) in unselected IVF patients.³

The ALIFE2 trial, published in the Lancet in 2023, randomized women with recurrent miscarriage and inherited thrombophilia to low-molecular-weight heparin (LMWH) versus no anticoagulation. There was no improvement in live birth.² This matters because Clexane, Lovenox, and aspirin are frequently offered after one or two losses on a "can't hurt" rationale. The evidence does not support that practice in this population. If your RE recommends LMWH after one failed transfer, ask what specific indication they are treating.

Uterine cavity and tubes

Overlaps with the endometrial bucket but worth its own line. If you have not had a recent hysteroscopy, the lessons-learned visit is a reasonable time to ask whether one is indicated, particularly if there were any irregularities on the transfer ultrasound. Saline-infusion sonogram is a less invasive alternative for many cavity questions. Hydrosalpinx, as above, is checked by HSG or ultrasound and treated before another transfer if found.

Sperm factor and embryo lab review

If fertilization was lower than expected in cycle one, sperm DNA fragmentation testing is reasonable in selected cases. ICSI versus conventional insemination should be reviewed if conventional was used and fertilization failed. The embryology lab can usually pull notes on fertilization, day 3 cell counts, blastulation rate, and culture conditions. This is information your clinic has but does not always volunteer. Ask for it.

What should change in cycle two, and what should not?

I tell every patient who comes in for a cycle-two consult: we are going to change one thing. Not three things. One. Multiple simultaneous changes make cycle two impossible to learn from, and the whole point of cycle two is to be informative.

Things that are commonly and reasonably changed after a failed transfer:

• Stim protocol: antagonist versus agonist, microdose flare for poor responders, starting FSH dose, addition of LH activity such as Menopur.
• Trigger type: dual trigger (hCG plus GnRH agonist) for some PCOS or poor responder profiles, GnRH agonist trigger alone for OHSS prevention in high responders.
• Day of biopsy and freeze: day 5 versus day 6 freezing rules.
• Endometrial preparation: programmed (estrogen and progesterone) versus modified natural FET, with progesterone level checked the day before transfer.
• Luteal support: vaginal versus intramuscular progesterone, addition of oral estrogen, supplementation if progesterone runs low.

Things sometimes added where the evidence is weak or null:

• Endometrial scratch: the Lensen et al. NEJM 2019 multicenter RCT showed no benefit; the practice has fallen out of routine use.⁴
• PRP (platelet-rich plasma) intrauterine: emerging, not standard, mostly small studies.
• Intralipids, IVIG, prednisolone: not evidence-based for unselected patients per ASRM 2018.³
• LMWH (Clexane, Lovenox) without specific indication: ALIFE2 was null in inherited thrombophilia.²

Things that should not change without a clear reason:

• An entire clinic switch after one failed transfer with no workup pattern indicating clinic issue.
• ICSI added when there is no male factor.
• PGT-A added reflexively when embryo count is low. Testing embryos for ploidy when you only have one or two blastocysts can leave you with nothing to transfer.

The "change one thing" principle is not just methodological tidiness. It is how you actually learn from your second cycle. If you change five things and cycle two works, you will not know which thing helped, and cycle three (if you need one) will be guesswork again. If you change five things and cycle two fails, the same problem applies in reverse.

What is the cost and emotional math of cycle two?

Here is the number worth knowing. Cumulative live birth per egg retrieval continues to rise through approximately three transfers from the same retrieval cohort, especially in younger patients.⁷ If you have frozen embryos remaining from cycle one, a frozen embryo transfer (FET) is significantly cheaper than a new retrieval. Costs run roughly USD 3,000 to 6,000 in the US for an FET, versus 15,000 to 25,000 for a full retrieval cycle, depending on geography and insurance. If your cohort still has embryos, the next transfer is the next reasonable step.

If you do not have frozen embryos remaining, the conversation is different. A second retrieval is a financial and physical decision that deserves its own consult and its own math. We have a separate post on when REs raise the stopping conversation, and I will link it below. That post is not where you are tonight. It exists for later, if it ever needs to.

What should you ask before your next appointment?

Walk into the lessons-learned visit with these on a piece of paper. Doctors who care about teaching will work through them with you.

1. Was my embryo PGT-A tested? If euploid, what is this clinic's euploid implantation rate by age?
2. Was my lining at least seven millimeters with a trilaminar pattern on transfer day?
3. Do you recommend a hysteroscopy or SIS before the next transfer?
4. What did the embryology lab note about fertilization, blastulation, and culture?
5. Are you recommending any add-ons? What is the specific evidence for each, and what is the cost?
6. What single variable are we changing for cycle two, and why this one?
7. What is my cumulative live birth probability across the remaining transfers from this cohort?

What red flags warrant a second opinion?

After a single failed transfer, a workup is reasonable. Aggressive intervention is not. These are the patterns I would push back on:

• "Let's just try the same thing again" with no workup, particularly after a second failed euploid transfer.
• A long add-on menu offered as the answer after one cycle: immune cocktails, ERA testing, intralipids, scratch, growth hormone, all stacked.
• No mention of hysteroscopy, SIS, thyroid recheck, or prolactin.
• LMWH or aspirin started without a specific indication, citing "extra support."
• Pressure to start cycle two next cycle when you have asked for a pause.

A second opinion from another reproductive endocrinologist is reasonable and common after a failed first transfer, especially if the workup did not feel thorough. Most REs do not take this personally.

What can you do tonight?

Not much, and that is the honest answer.

Eat something. Drink water. Cancel something on your calendar this week that you can cancel. Tell one person you trust what actually happened, not the cleaned-up version. If you have a partner, sit with them somewhere that is not the kitchen and let them sit with you. They are grieving too, often quietly, and often unsure whether they are allowed to.

Write down the questions in the list above so you have them when the lessons-learned visit comes. The visit is usually two to four weeks out. You will not remember everything you want to ask by then.

If the grief is heavier than you expected, and it often is, fertility-trained therapists exist for exactly this. RESOLVE maintains a directory in the US, and many clinics have referrals. Ask. The failed first IVF, what next question has a clinical answer, but the human one matters first.

What's next

• If you are ready to look at protocol changes for cycle two: /ivf/second-ivf-cycle-changes
• If this is your third or later failed transfer: /ivf/recurrent-implantation-failure
• If your cycle was cancelled before retrieval rather than failed at transfer: /ivf/cancelled-ivf-cycle
• If the stopping conversation is on your horizon: /ivf/when-doctors-recommend-stopping-ivf
• If you want grief support before any more medicine: /when-things-dont-go-to-plan/grieving-a-failed-transfer

Sources

1. Cimadomo D, de Los Santos MJ, Griesinger G, et al. ESHRE good practice recommendations on recurrent implantation failure. Human Reproduction Open 2023;2023(3):hoad023. https://doi.org/10.1093/hropen/hoad023
2. Quenby S, Booth K, Hiller L, et al. Heparin for women with recurrent miscarriage and inherited thrombophilia (ALIFE2): an international open-label, randomised controlled trial. Lancet 2023;402(10395):54-61. https://doi.org/10.1016/S0140-6736(23)00693-1
3. Practice Committee of the American Society for Reproductive Medicine. The role of immunotherapy in in vitro fertilization: a guideline. Fertility and Sterility 2018;110(3):387-400. https://doi.org/10.1016/j.fertnstert.2018.05.009
4. Lensen S, Osavlyuk D, Armstrong S, et al. A randomized trial of endometrial scratching before in vitro fertilization. New England Journal of Medicine 2019;380(4):325-334. https://doi.org/10.1056/NEJMoa1808737
5. Johnston-MacAnanny EB, Hartnett J, Engmann LL, et al. Chronic endometritis is a frequent finding in women with recurrent implantation failure after in vitro fertilization. Fertility and Sterility 2010;93(2):437-441. https://doi.org/10.1016/j.fertnstert.2008.12.131
6. Strandell A, Lindhard A, Waldenström U, Thorburn J. Hydrosalpinx and IVF outcome: cumulative results after salpingectomy in a randomized controlled trial. Human Reproduction 2001;16(11):2403-2410. https://doi.org/10.1093/humrep/16.11.2403
7. Society for Assisted Reproductive Technology (SART). National Summary Report: CORS preliminary data. https://www.sartcorsonline.com/