Medically Assisted Reproduction (MAR): how long does it take to get pregnant?

Key Takeaways

Medically assisted reproduction (MAR), also known as assisted reproductive technology (ART), can help when pregnancy does not occur naturally. The time it takes to conceive varies depending on age, medical factors, the treatment used and overall lifestyle balance. This article explains the main fertility treatments available in the UK, how long the process usually takes, and why physical and emotional well-being play an important role throughout the journey.

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Table of contents

  1. 01. Understanding medically assisted reproduction and the treatment pathway
  2. 02. IVF, ovarian stimulation and other treatment options
  3. 03. A personalised protocol for each situation
  4. 04. When should you consider medically assisted reproduction?
  5. 05. How long does it take to get pregnant with MAR?
  6. 06. What about simple ovarian stimulation (Clomid, Letrozole)?
  7. 07. What influences how long it takes?
  8. 08. How to protect your well-being during MAR
  9. 09. Emotional support: a key part of the MAR journey
  10. 10. Where to find support
  11. 11. Practical tips for daily life
  12. 12. When to seek additional help
  13. 13. A journey of hope

If you are starting a medically assisted reproduction (MAR) journey - also known as assisted reproductive technology (ART) - you are probably asking yourself a key question: how long does it take to get pregnant?

MAR represents real hope, but it is also often a long and emotionally demanding path. The time it takes to achieve pregnancy depends on many factors: age, the cause of infertility, the technique used, as well as lifestyle habits and overall physical and emotional balance.

In this article, you’ll discover how many cycles are needed on average to achieve pregnancy, what influences outcomes, and how to support your well-being throughout your journey.


Understanding medically assisted reproduction and the treatment pathway

Before talking about timelines or success rates, it can be reassuring to understand what medically assisted reproduction involves and how the different stages of treatment usually unfold.

What is medically assisted reproduction?

Medically assisted reproduction (MAR), also referred to as assisted reproductive technology (ART), includes all medical techniques that support conception when pregnancy does not occur naturally.

According to the World Health Organization (WHO), infertility is generally defined as the absence of pregnancy after 12 to 24 months of regular, unprotected intercourse.

MAR therefore aims to support individuals and couples in their reproductive project, in a personalised way, within a medically and legally regulated framework.

In Europe, ART now accounts for a significant proportion of births each year, reflecting both its accessibility and its growing role in reproductive care.

IVF, ovarian stimulation and other treatment options

In medically assisted reproduction, several options may be offered depending on individual medical and personal circumstances. MAR brings together different techniques designed to support conception when it does not occur naturally.

Ovarian stimulation

Ovarian stimulation aims to encourage the development of one or more follicles in the ovaries to increase the chances of fertilisation. It is carried out under close medical supervision, with regular ultrasounds and hormone tests to adjust treatment.

This step may be used on its own or before intrauterine insemination (IUI) or in vitro fertilisation (IVF).

In vitro fertilisation (IVF)

During IVF, eggs are collected after ovarian stimulation and fertilised with sperm in a laboratory. Once fertilisation occurs, embryos are cultured for a few days before one or more are transferred into the uterus.

Embryos that are not transferred can be frozen for later use (frozen embryo transfer), offering additional opportunities for pregnancy if the parental project allows.

Other possible techniques

Depending on the situation, other approaches may be considered:

  • ICSI (intracytoplasmic sperm injection): used when sperm have difficulty fertilising the egg naturally

  • Frozen embryo transfer (FET): using embryos preserved from a previous cycle

  • Gamete donation (egg or sperm donation): when conception with one’s own gametes is not possible, within the legal framework of the country

All options are discussed in detail during medical consultations.

A personalised protocol for each situation

Each treatment protocol is unique and defined based on many factors: age, ovarian reserve, medical history and the cause of fertility challenges.

The fertility specialist takes time to explain each stage and answer questions before treatment begins. While the process requires time and monitoring, every step is designed to offer the safest and most favourable conditions for conception, while respecting the body’s rhythm.

When should you consider medically assisted reproduction?

The decision to begin MAR depends on both medical and personal factors and is validated by the fertility care team.

When to seek help for conception

Medical guidelines generally recommend seeking advice after 12 months of unsuccessful attempts (or earlier in certain situations). An earlier consultation may be advised in cases such as ovulation disorders, endometriosis, polycystic ovary syndrome (PCOS), or known male fertility issues.

Speaking with your GP, gynaecologist or midwife at any stage can be reassuring and informative. A fertility assessment helps identify possible causes and tailor care to improve the chances of success.

A holistic approach from the start

MAR is not only a medical process, it is also a deeply human experience.

Fertility clinics often rely on multidisciplinary teams: doctors, embryologists, midwives and psychologists. Their goal is to offer comprehensive care that considers the body, the mind and emotional well-being throughout the journey.

How long does it take to get pregnant with MAR?

Data from fertility registries provide insight into pregnancy chances based on age, treatment type and number of cycles. These figures help set realistic expectations.

Key figures

Available data show that live birth rates per IVF cycle are highest in women under 35 and decrease with age, particularly after 40. A complete IVF cycle—from stimulation to embryo transfer—usually lasts four to six weeks.

However, it is common for several cycles to be needed before achieving an ongoing pregnancy.

Success rates by type of embryo transfer

Success is generally measured by live birth rates per cycle or cumulative attempts rather than pregnancy rates alone.

Whether embryos are transferred fresh or after freezing, the chance of achieving a birth per transfer is often around one in four, depending on age and individual factors.

How many cycles are needed on average?

Statistics show that IVF leads to a live birth in roughly one out of four cycles. These stable figures highlight that success often comes with time and persistence.

That said, some people do conceive on the very first attempt.

What about simple ovarian stimulation (Clomid, Letrozole)?

Simple ovarian stimulation using medications such as Clomid or letrozole is often offered as a first-line treatment, particularly in cases of ovulation disorders like PCOS.

These treatments are usually limited to a defined number of cycles (often up to six), to avoid prolonged ineffective stimulation and to reassess strategy if pregnancy does not occur.

Medical literature suggests that when ovulation is effectively induced and properly monitored, cumulative pregnancy or live birth rates may reach around 20–25% over several cycles, with significant individual variation.

If pregnancy does not occur, alternative approaches such as IUI or IVF are usually discussed.

What influences how long it takes?

Time to pregnancy depends on many factors: age, egg quality, cause of infertility and lifestyle habits.

Research shows that chronic stress, poor sleep and unbalanced nutrition can negatively affect fertility outcomes. Conversely, supporting overall health may contribute to more favourable conditions for conception.

Age remains the main factor influencing pregnancy chances, whether natural or assisted. As with spontaneous conception, the probability of pregnancy per cycle decreases over time.

These figures are indicative and vary widely. Discuss your individual situation with your fertility team.

How to protect your well-being during MAR

This journey can be exhausting. This is a time to prioritise yourself and your needs.

Nutrition, weight and physical activity

A varied, balanced diet supports your body throughout treatment. Maintaining a stable weight - neither too low nor too high - helps overall physiological balance. Gentle physical activity such as walking, swimming or yoga can also support well-being.

Certain nutrients play a role in normal physiological function, including folate, zinc and vitamin C. If dietary intake is insufficient, supplements may be considered to support nutritional balance.

Supplements and holistic support

Some food supplements may help support nutritional balance and overall well-being during MAR, alongside a healthy diet.

They should be used as part of a global approach and tailored to individual needs, without replacing medical follow-up. Advice from a healthcare professional remains essential.

Emotional support: a key part of the MAR journey

MAR often feels like an emotional rollercoaster: hope, waiting, sometimes disappointment. Fatigue, frustration and anxiety are common and valid.

Managing emotional ups and downs

Acknowledging emotions, talking about them and allowing yourself breaks can help reduce mental load.

Helpful strategies include:

  • Welcoming emotions through journaling, breathing or time outdoors

  • Creating gentle rituals before and after appointments

  • Setting boundaries around information and avoiding anxiety-driven scrolling

  • Preserving moments of joy and non-fertility-focused activities

  • Listening to your body’s need for rest

The role of your partner and support network

This journey is often shared. Open, regular communication strengthens mutual support. Friends and family can also be valuable resources when boundaries are clearly expressed.

If you are navigating MAR solo or in a different family structure, these principles still apply: choose people who can listen without judgement.

Sharing responsibilities - appointments, paperwork, logistics - helps reduce mental load and strengthens connection.

Where to find support

Speaking with trained professionals or others who understand MAR can make a real difference, especially during key moments such as egg retrieval, pregnancy testing, success or disappointment.

You can seek support from:

  • Your fertility clinic team (psychologists, midwives)
  • Support groups and associations
  • Complementary professionals such as psychologists, counsellors, sophrologists or hypnotherapists

Practical tips for daily life

Creating a small “anti-overload” plan can help you move through the journey more calmly. Delegating tasks, being accompanied to appointments or simplifying your schedule allows space to breathe.

Protect your sleep as much as possible, stress and treatments can disrupt it. Gentle approaches such as sophrology, meditation or mindful breathing can support emotional balance.

Finally, curate your digital environment. Limiting information sources and stepping back from anxiety-triggering content can help you stay informed without feeling overwhelmed.

When to seek additional help

If anxiety, sadness or irritability persist, if sleep or appetite are significantly disrupted, or if daily life becomes difficult, speak with your medical team or a mental health professional. Asking for help is part of comprehensive care.

A journey of hope

Medically assisted reproduction is a demanding journey, but one filled with hope. The time it takes to get pregnant varies from one woman to another, and each step is progress toward your project.

Take care of your body, your nutrition, your sleep and your emotional balance. Surround yourself with attentive medical support and kind, supportive people. If needed, supplements can support well-being and help prepare your body.

Patience and self-listening will be among your greatest allies.

Key Terms
  • Medically Assisted Reproduction (MAR) : A group of medical techniques used to support conception when pregnancy does not occur naturally. In the UK, this is often referred to as assisted reproductive technology (ART).
  • Assisted Reproductive Technology (ART) : The term commonly used in the UK to describe fertility treatments such as IVF, IUI and ovulation induction.
  • Ovulation induction : A treatment that uses medication (such as clomifene or letrozole) to stimulate the ovaries to release an egg, often used in cases of ovulatory disorders like PCOS.
  • In vitro fertilisation (IVF) : A fertility treatment where eggs are fertilised with sperm in a laboratory before one or more embryos are transferred into the uterus.
  • Frozen embryo transfer (FET) : The transfer of an embryo that was previously frozen during an earlier IVF cycle.
  • Fertile window : The period during the menstrual cycle when pregnancy is possible, including the days leading up to ovulation and the day ovulation occurs.
  • Live birth rate : A measure commonly used in fertility statistics that reflects the percentage of treatment cycles resulting in the birth of a baby.

Scientific References

(1)   Human Fertilisation & Embryology Authority https://www.hfea.gov.uk/about-us/publications/research-and-data/fertility-treatment-2023-trends-and-figures/

(2)   Agence de la biomédecine. Principaux chiffres de l’activité AMP 2023. Rams – Agence de la biomédecine. 
https://rams.agence-biomedecine.fr/principaux-chiffres-de-lactivite

(3)   Agence de la biomédecine, Rapport d’activité sur l’assistance médicale à la procréation (AMP) – Données 2021, publié en 2023 https://rams.agence-biomedecine.fr/sites/default/files/pdf/2023-08/ABM_PEGH_RAMS_AMP_2021_0.pdf

(4) Tulandi T., Casper R. When clomiphene is no longer available…
Journal of Obstetrics and Gynaecology Canada
, 2017;39(9):715–716.
DOI: 10.1016/j.jogc.2017.06.024
https://www.jogc.com/article/S1701-2163(17)30664-3/pdf 

(5)   Rooney KL, Domar AD. The relationship between stress and infertility. Dialogues in Clinical Neuroscience. 2018;20(1):41-47.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6016043/

(6)   Society for Assisted Reproductive Technology (SART). Wellness and Fertility : Diet, Sleep, and Exercise.
https://www.reproductivefacts.org/browse-resources/sart-fertility-experts/sart-fertility-experts--wellness-fertility-sleep-diet-exercise/

Laurence RUAS
Former midwife

I worked for over ten years as a state-certified midwife in a level-3 maternity unit, specialised in the management of maternal and neonatal conditions.

Today, I support women in a different way, using hypnosis and sophrology, tailoring my approach to each individual’s needs.

Passionate about women’s health and perinatal care, I am also a health-focused writer.

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Frequently asked questions

How long does it usually take to get pregnant with fertility treatment?

There is no fixed timeline. Some people conceive after one cycle, while others need several attempts. A single IVF cycle typically lasts four to six weeks, but achieving pregnancy may take several months depending on individual factors.

What factors influence success rates in medically assisted reproduction?

Age is the most important factor, followed by egg quality, sperm quality, the cause of infertility and the treatment used. Lifestyle factors such as stress, sleep, nutrition and overall health can also influence outcomes.

How many IVF cycles are usually needed?

On average, IVF leads to a live birth in about one out of four cycles, though this varies by age and individual circumstances. Many people require more than one cycle before achieving an ongoing pregnancy.

Are ovulation induction treatments like clomifene or letrozole used in the UK?

Yes. In the UK, ovulation induction commonly involves clomifene citrate or letrozole, particularly for ovulatory disorders such as PCOS. Letrozole is now often preferred, especially in PCOS, due to its effectiveness and favourable side-effect profile.

Can lifestyle and well-being affect fertility treatment outcomes?

Yes. While medical treatment is central, supporting overall well-being through balanced nutrition, adequate sleep, stress management and gentle physical activity can help create more favourable conditions for conception.

When should emotional or psychological support be considered during fertility treatment?

Emotional support can be helpful at any stage of the journey, especially during periods of waiting, uncertainty or after unsuccessful attempts. Fertility clinics, support groups and mental health professionals can all play an important role.