IVF Didn't Work the First Time: Why, the Review Appointment and What Happens Next

The day of the negative test is the hardest day of IVF. Then come two questions: “Why didn’t it work?” and “What now?” This article answers both — drawing on the patient guidance of the UK regulator HFEA and the European Society ESHRE’s 2023 recommendations on recurrent implantation failure. Let us say it first: a first cycle without a pregnancy is not a diagnosis.

First, know this: it is common, and it is not your fault

Not conceiving in a single cycle is part of the normal course of IVF; even a good-quality embryo does not implant at every transfer. The most common reason is random chromosomal differences in the embryo, and their share rises with age. Nothing ordinary you did after transfer — walking, working, travelling, a sad day — changes the result; we explained this in our article on the two weeks after transfer. Drop the sentence “I should have stayed in bed”: the evidence is on your side.

When does the period come, and what about the medication?

After a negative blood test the doctor will tell you to stop the progesterone; the period usually begins within a few days and the first one may be heavier or different from usual. Do not stop the medication on your own before the test: the result and the instruction to stop come together.

The review appointment: what does the doctor look at?

The second attempt is not simply repeated; the first cycle is first read as data. At the review, the following are examined in turn:

• Response to stimulation: how many follicles grew, how many eggs were collected, how many were mature. A weaker or stronger response than expected changes the next protocol and dose.
• Fertilisation: what share of the eggs fertilised. If low, the male side is re-evaluated; the method may shift to ICSI or IMSI.
• Embryo development: how many embryos developed to which day and of what quality. This says something about the laboratory and about egg and sperm quality.
• Uterus and lining: endometrial thickness and appearance on transfer day; if a polyp, adhesions or fluid are suspected, hysteroscopy may be discussed.
• The transfer itself: easy or difficult, on which day, how many embryos.
• General health: thyroid, weight, smoking, medication — a small thing missed in the first cycle is corrected in the second.

You should leave this appointment with two things: a written summary of the first cycle and an understanding of what will change in the second. “Let’s do the same again” can be the right answer if the first cycle genuinely went smoothly — but the reasoning should be explained.

If you have frozen embryos

If embryos were frozen from the first cycle, no new stimulation is needed: the lining is prepared and a frozen embryo transfer is performed. This is physically much lighter and considerably cheaper, and it is most often the next step.

When does “recurrent failure” begin?

The term is used far too often online. ESHRE’s 2023 recommendations define recurrent implantation failure not by a single number but by age and whether the embryos were genetically tested: for example, failure of two embryos known to be euploid, or of three untested embryos in a woman under 35, is the threshold for further investigation. So one failed cycle does not meet this definition and does not call for a long list of tests. The recommendations add a warning: investigations and treatments should be restricted to those with a clear rationale and data showing likely benefit.

Add-ons: what to watch out for

After a failed cycle couples tend to ask for “something extra”, and the market is ready: immune treatments, various embryo “glues”, assisted hatching, endometrial scratching, additional courses of medication. HFEA rates these by level of evidence and for many of them says there is not enough evidence that they improve outcomes. That does not mean none of them is ever used: an intervention that answers a specific finding makes sense. But everything added “just in case” means cost and unnecessary procedures. Ask your doctor: “Which finding of mine calls for this?”

What can change in the plan?

• Stimulation protocol and drug dose
• Fertilisation method (ICSI/IMSI)
• Freezing the embryos and postponing transfer to a later cycle
• Genetic testing (PGT) in recurrent loss or at an advanced age
• Uterine assessment (hysteroscopy) — only if there is a finding
• Re-evaluation of the male side — our article on male infertility

When to try again?

Physically most patients are ready after one normal menstrual cycle; with a frozen transfer the interval can be even shorter. The real question is emotional readiness. HFEA’s advice is clear: give yourself time to recover, get support and ask your doctor for an honest opinion — including on whether continuing makes sense for you. Partners often recover at different speeds; one saying “right away” and the other “let’s wait a little” is not a conflict but two faces of the same loss.

The one thing we ask of you

Come to the review appointment — even with a negative result, even if you are thinking of continuing elsewhere. The records of the first cycle are your information; no second decision made without understanding them is a sound one.

This article is general information, not a diagnosis or treatment recommendation. Individual assessment requires a physician’s examination and a review of the cycle records.

Sources

• HFEA (UK) — Coping if treatment doesn't work
• ESHRE — Good practice recommendations on recurrent implantation failure (2023)
• HFEA (UK) — Treatment add-ons: what the evidence says
• ASRM — In vitro fertilization (IVF): what are the risks?