The chance of success with IVF depends above all on the woman’s age, and at our clinic it ranged from 21% to 72% per attempt in 2025. This page shows our actual figures by age, what they mean and what affects them.
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Most people reading this page are wondering the same thing: what is the chance that you will have a baby with IVF? The honest answer needs some nuance. Success can be measured as a positive pregnancy test, a clinically confirmed pregnancy or a live birth, and each measure tells you something slightly different. We show the first two below, because you deserve both figures to be able to compare clinics. If you would like to talk to us about your own situation, you can start with your first appointment. You can read more about IVF treatment at Klinikk Hausken on our main page.
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We report two pregnancy measures per treatment, because they answer two different questions.
A positive pregnancy test is measured with an hCG blood test about 10–14 days after the embryo has been transferred. It is the first sign that the embryo has implanted, but the figure also includes early biochemical pregnancies that do not necessarily continue.
A clinical pregnancy means an ongoing pregnancy confirmed by ultrasound at around week 6–7, with a heartbeat detected. It is a more reliable measure of actual pregnancy than the hCG test alone, and the measure patients and other clinics most often compare.
We also distinguish between fresh cycles (eggs are retrieved and fertilised, and the embryo is transferred in the same cycle) and frozen cycles (a previously frozen embryo is thawed and transferred, often called FER, short for “Frozen Embryo Replacement”). If you compare Klinikk Hausken with another clinic, compare clinical pregnancy with clinical pregnancy and positive test with positive test. You can read more about how we measure and report IVF statistics further down.
The figures are based on completed treatments at Klinikk Hausken in 2025, grouped by the woman’s age at the start of treatment. For each age group we show positive pregnancy test and clinical pregnancy, for both fresh and frozen cycles.
In general, women under 30 have a better chance of success with fertility treatment than older women, because fertility is at its highest. The success rate still varies with the cause of infertility, the type of treatment and individual circumstances.
Positive pregnancy test after fresh embryo transfer: 67% of our fresh embryo transfers in women under 30 gave a positive pregnancy test (hCG blood test) about 10–14 days after the transfer. This is the first sign that the embryo has implanted, but the figure also includes early biochemical pregnancies that do not necessarily continue.
67% positive pregnancy test after fresh embryo transfer, women under 30, Klinikk Hausken 2025.
Clinical pregnancy after fresh embryo transfer: 58% of fresh transfers led to a clinically confirmed pregnancy, meaning a heartbeat was detected on ultrasound at around week 6–7. This is a more reliable measure of actual pregnancy than the hCG test alone.
58% clinically confirmed pregnancy after fresh embryo transfer, women under 30, Klinikk Hausken 2025.
Positive pregnancy test after frozen embryo transfer: 72% of frozen embryo transfers gave a positive pregnancy test. Frozen transfers often have a slightly higher success rate than fresh ones, because the uterus can be optimally prepared before transfer without hormone stimulation at the same time.
72% positive pregnancy test after frozen embryo transfer, women under 30, Klinikk Hausken 2025.
Clinical pregnancy after frozen embryo transfer: 63% of frozen transfers led to a clinically confirmed pregnancy with a heartbeat on ultrasound.
63% clinically confirmed pregnancy after frozen embryo transfer, women under 30, Klinikk Hausken 2025.
Women aged 30 to 34 still have reasonably good chances, although they gradually decrease with age.
Positive pregnancy test after fresh embryo transfer: 53% of our fresh embryo transfers in women aged 30–34 gave a positive pregnancy test 10–14 days after the transfer.
53% positive pregnancy test after fresh embryo transfer, women aged 30–34, Klinikk Hausken 2025.
Clinical pregnancy after fresh embryo transfer: 46% of fresh transfers led to a clinically confirmed pregnancy with a heartbeat on ultrasound at around week 6–7.
46% clinically confirmed pregnancy after fresh embryo transfer, women aged 30–34, Klinikk Hausken 2025.
Positive pregnancy test after frozen embryo transfer: 64% of frozen embryo transfers gave a positive pregnancy test. Here the chance with FER is clearly higher than with fresh cycles in the same age group.
64% positive pregnancy test after frozen embryo transfer, women aged 30–34, Klinikk Hausken 2025.
Clinical pregnancy after frozen embryo transfer: 52% of frozen transfers led to a clinically confirmed pregnancy.
52% clinically confirmed pregnancy after frozen embryo transfer, women aged 30–34, Klinikk Hausken 2025.
For women aged 35 to 39 the chances gradually decrease, because fertility naturally declines with age. In this age group, frozen cycles raise the result considerably compared with fresh cycles.
Positive pregnancy test after fresh embryo transfer: 49% of our fresh embryo transfers in women aged 35–39 gave a positive pregnancy test.
49% positive pregnancy test after fresh embryo transfer, women aged 35–39, Klinikk Hausken 2025.
Clinical pregnancy after fresh embryo transfer: 37% of fresh transfers led to a clinically confirmed pregnancy with a heartbeat on ultrasound.
37% clinically confirmed pregnancy after fresh embryo transfer, women aged 35–39, Klinikk Hausken 2025.
Positive pregnancy test after frozen embryo transfer: 59% of frozen embryo transfers gave a positive pregnancy test, ten percentage points higher than for fresh cycles in the same age group.
59% positive pregnancy test after frozen embryo transfer, women aged 35–39, Klinikk Hausken 2025.
Clinical pregnancy after frozen embryo transfer: 47% of frozen transfers led to a clinically confirmed pregnancy.
47% clinically confirmed pregnancy after frozen embryo transfer, women aged 35–39, Klinikk Hausken 2025.
For women aged 40 or over the chances fall considerably, because fertility declines and the risk of chromosomal abnormalities in the egg increases.
Dr Hausken often makes the same point in clinic: 21% per fresh attempt is a real chance, and the 79% where it doesn’t happen is just as real. Both numbers are true. You deserve both to make an informed choice about how many attempts you want and whether to consider alternatives such as donor eggs.
Positive pregnancy test after fresh embryo transfer: 33% of our fresh embryo transfers in women aged 40 or over gave a positive pregnancy test.
33% positive pregnancy test after fresh embryo transfer, women aged 40 and over, Klinikk Hausken 2025.
Clinical pregnancy after fresh embryo transfer: 21% of fresh transfers led to a clinically confirmed pregnancy with a heartbeat on ultrasound.
21% clinically confirmed pregnancy after fresh embryo transfer, women aged 40 and over, Klinikk Hausken 2025.
Positive pregnancy test after frozen embryo transfer: 43% of frozen embryo transfers gave a positive pregnancy test. In this age group too, FER is clearly ahead of fresh cycles.
43% positive pregnancy test after frozen embryo transfer, women aged 40 and over, Klinikk Hausken 2025.
Clinical pregnancy after frozen embryo transfer: 28% of frozen transfers led to a clinically confirmed pregnancy.
28% clinically confirmed pregnancy after frozen embryo transfer, women aged 40 and over, Klinikk Hausken 2025.
One appointment that shows you where you stand and what the next step is. No GP referral needed.
The per-attempt figures tell you what happens in one cycle. They don’t tell you what happens if you have several. The chance of success with IVF rises noticeably when you count several completed attempts.
International figures from ESHRE show that the cumulative chance of pregnancy after three completed IVF cycles is around 84% for women under 35. In the 41–42 age group, the cumulative chance after three attempts falls to around 34%. This is one of the reasons why Norwegian public guidelines cover up to three attempts for women under 39 at the start of treatment.
In practice: under 35 it is not unusual to need more than one attempt, and statistically the chance of success after three attempts is clearly better than after one. Over 40, even three attempts with your own eggs can end without a pregnancy, and it may then make medical sense to consider alternatives such as donor eggs.
With our IVF prices you can plan the total cost of several private attempts.
Your age is the single factor that affects the result most, but it is not the only one.
Egg reserve and egg quality. The number of eggs left in the ovaries, measured with AMH and an antral follicle count on ultrasound, predicts how you respond to hormone stimulation. Egg quality (the share of eggs with a normal number of chromosomes) declines steadily with age and is the main reason success rates fall with age.
Sperm quality. Low concentration, reduced motility or high DNA fragmentation can lower the fertilisation rate and embryo quality. When sperm quality is reduced, we often recommend ICSI at Klinikk Hausken instead of standard IVF.
Previous treatment results. The number of eggs we retrieved and fertilised in a previous cycle says a lot about what the next attempt can give. If you have embryos frozen from a previous cycle, the chance that an FER transfer succeeds increases. You can read more about egg retrieval in IVF on that page.
The uterine environment. A healthy uterine lining is essential for the embryo to implant. We routinely check the uterine environment before embryo transfer and can adjust the protocol or switch to FER if the uterus is not ready in the fresh cycle.
Lifestyle and BMI. Smoking, a high or low body mass index and chronically high stress reduce fertility and affect both egg and sperm quality. Read more in our article on BMI and IVF results.
The age of the person providing the sperm. After 45, sperm quality declines noticeably, and new ESHRE data shows that higher age also increases the risk of miscarriage and lowers the live birth rate, even when donor eggs are used.
ESHRE reports live birth rates of around 46–50% per embryo transfer for women under 35 using their own eggs, falling to 38–40% at 35–37, around 26% at 38–40 and around 13% at 41–42.
An important caveat: the ESHRE figures measure live birth, while our figures above measure clinically confirmed pregnancy at around week 6–7. Clinical pregnancy is an earlier checkpoint than live birth, so if you compare directly without adjusting for this, our figures will look slightly higher than the ESHRE figures for the same age group. We publish clinical pregnancy because it is the measure most clinics use, and because the 2025 cohort has not yet been followed up to birth. Live birth rates will be added when the cohort is complete.
Nationally, the Medical Birth Registry of Norway (FHI) shows that around 1,500–1,600 children are born in Norway each year after IVF, and a further 1,200–1,400 after ICSI.
We believe fertility patients are entitled to real IVF statistics, not marketing figures. This is how we measure.
Who is included. The figures cover all completed IVF and ICSI cycles at Klinikk Hausken in 2025, grouped by the woman’s age at the start of the cycle. We do not separate out specific diagnoses, because an overall report gives a more honest picture of what an average patient in a given age group can expect.
How we measure. A positive pregnancy test is defined as hCG above the normal detection level in a blood test 10–14 days after embryo transfer. A clinical pregnancy is defined as a heartbeat confirmed by ultrasound at around week 6–7. A fresh cycle is a completed cycle with egg retrieval and transfer in the same cycle. A frozen cycle is a thaw-and-transfer cycle using a previously frozen embryo.
What we don’t report yet. The live birth rate per cycle for 2025 will be published once the cohort has been followed up. We also don’t report success rates by diagnosis here, because small subgroups give unreliable figures. We cover that nuance in your individual consultation.
How to compare. When you compare Klinikk Hausken’s IVF statistics with another clinic’s, check four things: that the age groups are defined the same way, that the measure is the same, that the number of embryos transferred each time is comparable (we usually transfer one embryo, in line with European practice) and that the average age of the patients is roughly the same.
When we update. The figures are updated once per calendar year, after the year’s data has been collected and quality-checked.
Select a question to read the answer.
What is the chance of success with IVF?
Measured as clinically confirmed pregnancy per fresh attempt, the chance of success with IVF ranges from 58% for women under 30 to 21% for women aged 40 or over, based on Klinikk Hausken's 2025 figures. Frozen cycles consistently give a higher chance than fresh cycles in the same age group. Age is the most important single factor, but egg reserve, sperm quality and the uterine environment also affect the result.
How many women get pregnant on the first IVF attempt?
Among women under 30 at Klinikk Hausken, 58% achieved a clinically confirmed pregnancy on their first fresh IVF attempt in 2025. In the 30–34 age group the figure is 46%, at 35–39 it is 37%, and among women aged 40 or over it is 21%. Many of those who do not succeed on the first attempt succeed later with a frozen cycle or a new fresh attempt.
How many IVF attempts do most people need?
Most patients need more than one attempt. International figures from ESHRE show that the cumulative chance of pregnancy after three completed attempts is around 84% for women under 35 and around 34% for women aged 41–42. In the Norwegian public health service, up to three attempts are covered for women under 39 at the start of treatment, and privately there is no upper age limit until around 45–46.
Why is the success rate often higher with frozen cycles than with fresh ones?
Frozen cycles often give a higher chance of pregnancy than fresh ones because the uterus can be optimally prepared before the embryo is transferred, without hormone stimulation at the same time. In a fresh cycle the uterine lining is exposed to high hormone levels from ovarian stimulation, which does not always give the best environment for implantation. In a frozen cycle the lining is prepared separately, and the embryo is transferred at the biologically most favourable time.
Which treatment gives the best chance if I have low AMH or a reduced egg reserve?
Low AMH means you have fewer eggs left, but it says less about the quality of the eggs you do have. The main strategy is to retrieve what we can and make good use of it. That can mean a milder stimulation protocol, collecting embryos over several cycles before transfer, or moving early to ICSI at Klinikk Hausken if sperm quality is also a factor. With a very low reserve combined with higher age, donor eggs can be a realistic alternative.
Are Klinikk Hausken's figures comparable with other clinics' figures?
Yes, as long as you compare the same measure. We report both positive pregnancy test and clinical pregnancy, for both fresh and frozen cycles, split into four age groups. When you compare with another clinic, check that the age groups are the same, that the measure is at the same level (clinical pregnancy against clinical pregnancy) and that the average age of the patients is roughly the same.
Start with the Fertility Check and we’ll go through your situation together. Or send us your question first.
🕒 Opening hours: Mon-Fri 8am-4pm
🏷️ Prices: The Fertility Test: from NOK 2500 • Sperm test: 2400 kr • Gynaecological examination: 2000 kr • Ultrasound: 2000 kr • NIPT: 8700 kr • See price list >>
ℹ️ More info: See doctors, address and map for your clinic:
Doctors at our clinic in Oslo:
Dr. Ingrid Børke • Dr. Adrian Botea • Dr. Ragni Kvestad Idland • Dr. Guri Pande-Rolfsen
Address for Klinikk Hausken Oslo:
Lysaker Torg 5, 1366 Lysaker
Doctors at our clinic in Stavanger:
Dr. Arne Schwennicke
Address for Klinikk Hausken Stavanger:
Eiganesveien 10-12, 4008 Stavanger
Doctors at our clinic in Bergen:
Dr. Ørjan L. Vermeer • Dr. Kirsten Øvergaard Hope
Klinikk Hausken Bergen address:
Kong Oscars gate 66-68, 5017 Bergen
Doctors at our Haugesund clinic:
Dr. Jon Hausken
Klinikk Hausken Haugesund address:
Karmsundgata 59B, 5531 Haugesund
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“Klinikk Hausken has modern clinics in Oslo, Stavanger, Bergen and Haugesund”
Our team of physicians and embryologists have access to cutting-edge technologies in fertility and gynecology.
The clinic has grown since we started in 2006. Today, we help singles and couples across the country with IVF treatment.
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