IVF

Who IVF is for

IVF is for people who have not conceived after a reasonable stretch of trying. That usually means a year under thirty-five, six months over it. It is also for anyone whose test results make natural conception unlikely from the start. That includes blocked or absent tubes, severe sperm problems, endometriosis, ovulation disorders that tablets have not fixed, and unexplained infertility after simpler treatment has failed.

It is also the route for people who need it for structural reasons rather than medical ones: single women using donor sperm, female couples, male couples working with a surrogate where the law allows, and anyone using frozen eggs or embryos they banked earlier.

What a clinic asks about first is age. Next comes ovarian reserve, usually an AMH blood test and a count of the small follicles on a scan, and then a semen analysis and the shape of the uterus and tubes. Age is the single strongest predictor of everything that follows, which is why it pays to get tested and start planning early. If simpler options have not been tried, a good clinic will say so before starting you on injections.

Before your first appointment

Write down when you started trying, in months, and bring any test results either of you already has. Clinics restart the clock on tests that are older than a year, and knowing which of yours still count can save you a month and a repeat bill.

Choosing between them

Most of this is guided by your test results, which makes the choices clearer. Sperm quality decides whether the eggs are fertilised in a dish or by ICSI, one at a time under a microscope. Ovarian reserve and how you responded to drugs last time decide how hard the stimulation is pushed, and whether a mild cycle is the right plan for you. Your clinic tailors both to your results.

The one genuine choice many people get at the start is whether to try something lighter. Insemination is cheaper and gentler, with lower odds per attempt than IVF. It earns its place where the tubes are open and the sperm is reasonable, which in practice is often single women and female couples using donor sperm.

The key is knowing when to move on. Three or four attempts is usually the point to step up to IVF, and setting that limit at the start keeps your time and money working for you.

The decisions that are genuinely yours arrive later, once there are embryos in the laboratory. One is whether an embryo goes back in the same cycle or the batch is frozen for a frozen embryo transfer. The other is whether the embryos are screened first with PGT-A, which suits some people more than others. Ask which decision the screening result would change for you, and you will know whether it belongs in your plan.

At the first consultation

Ask what the clinic would do differently on a second cycle if the first one does not work. A considered answer shows they are planning a course of treatment with you, and it is the best question to ask before you commit.

The IVF options

This is not a menu of competing treatments, with one exception. Conventional IVF is the whole cycle. ICSI is one step inside it done by hand, mild stimulation is the same cycle on a much smaller drug dose, and a frozen transfer is the back half of the cycle run again months or years later. Start with IVF whichever acronym your clinic has already used, because the rest only makes sense against it.

The exception is insemination, which is listed first because that is where it comes in time. It is a different treatment with its own odds, not a lighter version of a cycle, and for some people it is the only treatment they ever need. Ovulation induction sits beside it for the same reason. Where not ovulating is the only problem, tablets and timed intercourse are often all it takes.

Embryo testing is last for the opposite reason. It is a decision rather than a stage, you can go through every other step without it, and it has to be agreed before egg collection rather than chosen once there are embryos to think about.

Before IVF

Collection and fertilisation

Embryo transfer

Embryo testing

IVF recovery

IVF is not surgery, but a cycle takes time and energy, so plan for it. Expect roughly two weeks of daily injections, scans every few days in clinic hours, a sedated egg collection that takes most of a day, and then a wait. Most people work through it, and most find the two-week wait at the end the hardest part.

Physically, the pattern is the same whichever treatment you are having. Bloating and tenderness build through the injections and peak around collection. After that come period-like cramping and some spotting for a day or two, and then very little.

The exception is ovarian hyperstimulation, where the ovaries over-respond and fluid shifts into the abdomen. Mild versions are common and settle. The severe version is uncommon and is the main medical risk of a cycle; it is treatable when caught early, so call your clinic if symptoms build.

It also helps to expect the numbers to narrow between stages, from eggs collected to eggs mature, eggs fertilised and embryos that keep growing to day five. That narrowing is normal, and the lab's updates will walk you through it.

IVF cost

IVF is usually priced in parts. A quoted cycle fee usually covers monitoring, egg collection, the laboratory work and one transfer. It usually excludes the drugs. Those are the most variable line, and they can add a third again to the bill. Freezing, annual storage, later transfers of those frozen embryos, ICSI, embryo testing and donor sperm are all priced separately.

Broadly, self-pay in the United States runs around $12,000 to $20,000 a cycle before drugs. The United Kingdom is roughly £5,000 to £8,000, again before drugs. Spain and central Europe sit around €4,000 to €7,000, and Thailand near $6,000 to $12,000 with ICSI often included.

Funding varies more than price does. Several European systems fund two or three cycles. The NHS funds by local policy, so how many cycles you get depends on where you live. Australia rebates a chunk through Medicare. In the United States it depends on your employer and your state.

The question I would ask is what a second and third cycle would cost as well as the first. That is the number that matches how IVF is planned, and it lets you budget with confidence.

Where it fits

Testing comes first, always. A full picture of ovarian reserve, sperm and tubes points you to the right treatment from the start, which saves time and money.

After that the usual order is the least involved thing that has a reasonable chance, then IVF. Ovulation tablets or IUI come first where the tubes are open and the sperm is adequate. IVF comes straight away where they are not, and where age means there is no time to spend on a treatment with lower odds per attempt.

Past the late thirties, the case for going straight to IVF gets stronger every year. Each attempt is worth more when you have fewer of them.

If your own eggs are not producing embryos after a few well-run cycles, donor conception is a strong next step, with odds that change completely because the eggs are younger.

Eligibility

Clinics set their own limits and countries set some too. Most private clinics have an upper age for treatment with your own eggs, commonly somewhere in the mid to late forties. The limit for donor eggs is higher. Many set a BMI range. Most want both partners screened for infectious diseases, and UK clinics are required to consider the welfare of any child born.

Funded treatment is stricter than private treatment everywhere it exists. Age caps are lower. There are usually rules about existing children, previous self-funded cycles and BMI. In the UK the criteria change across the country.

Single people and same-sex couples can be treated in most of Europe, the UK, the United States, Canada and Australia, though not everywhere. Some countries restrict donor use, embryo testing or surrogacy. If you are travelling for treatment, check what is legal at the destination before you book anything.

Frequently asked questions

How likely is IVF to work?

Age is the biggest factor. Roughly a quarter to a third of cycles started end in a live birth under thirty-five. That falls through the late thirties, and into single figures by the early forties with your own eggs, while chances over several cycles are higher. See IVF results for which measure to use.

How many cycles do most people need?

More than one. Cumulative chances keep climbing over the first three cycles, so the best plan budgets for a course rather than a single cycle. See cost.

Do the add-ons work?

For most, the evidence has not shown a better live birth rate, and they are charged separately, so ask what each one would add for you. PGT-A is the one with a real debate on both sides. See choosing between them.

Is a frozen embryo transfer as good as a fresh one?

For most people, yes, and for high responders it is safer. Many clinics now freeze everything as standard. See frozen embryo transfer.

Can we choose the sex of the embryo?

Only where the law allows it, which in most of Europe, the UK and Australia means only to avoid a serious inherited condition. Thailand prohibits it. It is permitted in parts of the United States.