IVF Preparation: The Ultimate Guide to Getting Your Body Ready for IVF Treatment

Beginning an IVF (in vitro fertilisation) journey is a significant decision — emotionally, financially, and physically. For many couples and individuals, IVF represents the best or only path to parenthood, whether due to blocked fallopian tubes, severe male factor infertility, age-related fertility decline, genetic conditions, or unexplained infertility. Preparing thoroughly for IVF — both body and mind — can meaningfully improve your outcomes. Research increasingly shows that the three to six months before starting an IVF cycle are a critical window for optimising egg quality, sperm health, hormonal balance, and general physiological readiness. This comprehensive guide covers everything you need to know to give your IVF cycle the best possible chance of success.

Understanding the IVF Process: What Your Body Will Go Through

Before discussing preparation, it is valuable to understand the IVF process itself — what your body will experience, and therefore what you are preparing it for. A standard IVF cycle involves several sequential phases.

Ovarian stimulation: The woman takes injectable hormonal medications — typically recombinant FSH (follicle-stimulating hormone) with or without LH — for 8–14 days to stimulate the ovaries to produce multiple follicles, each containing an egg. This is carefully monitored with transvaginal ultrasound and blood hormone tests every 2–3 days. The goal is to retrieve multiple eggs to increase the chances that at least some will fertilise and develop into viable embryos.

Egg retrieval: Once follicles reach the right size (typically 18–22 mm), an ovulatory trigger injection is given. 34–36 hours later, eggs are retrieved under sedation using an ultrasound-guided needle passed through the vaginal wall into each ovary. The procedure takes approximately 20–30 minutes. The woman may experience some cramping and bloating for a day or two afterward.

Fertilisation: Eggs are fertilised in the laboratory, either by conventional insemination (mixing eggs with prepared sperm) or ICSI (injecting a single sperm directly into each mature egg). Fertilisation is confirmed the following morning.

Embryo culture: Fertilised eggs (now embryos) are cultured in an incubator for 3–5 days. Many clinics culture to blastocyst stage (day 5), as only embryos with strong developmental potential survive to this stage, enabling better selection.

Embryo transfer: A fresh embryo may be transferred to the uterus 2–5 days after egg retrieval (fresh transfer), or all embryos may be frozen for transfer in a subsequent cycle (frozen embryo transfer, or FET). FET cycles are increasingly preferred as they allow the uterus to recover from stimulation.

Two-week wait: After transfer, the couple waits approximately 10–14 days before a blood pregnancy test (beta-hCG) confirms whether implantation has occurred.

Understanding these stages helps you appreciate why preparation matters: egg quality and uterine receptivity are laid down weeks to months before stimulation begins; sperm quality reflects the preceding 74–90 days; and general health and hormonal balance underpin everything.

Optimising Egg Quality Before IVF

Egg quality is arguably the single most important factor determining IVF success rates. A good-quality egg is one that is chromosomally normal (euploid), with intact mitochondrial function, appropriate cytoplasmic maturity, and the capacity to be fertilised and develop into a viable blastocyst. Unfortunately, egg quality cannot be directly assessed without fertilising the egg and observing its development — but the conditions in which eggs mature (the three to six months before retrieval, during which primordial follicles are recruited and develop) profoundly influence the quality of the eggs ultimately retrieved.

The mitochondria within the egg cell are particularly important. Eggs contain more mitochondria than any other cell in the body — approximately 100,000–600,000 — because they must power the energy-intensive processes of fertilisation and early embryonic development. Mitochondrial health depends critically on antioxidant protection and specific nutrients, particularly coenzyme Q10 (CoQ10) and its reduced form ubiquinol.

CoQ10 declines naturally with age — which is one reason egg quality diminishes from the mid-30s onward. Supplementation with CoQ10 or ubiquinol (the more bioavailable form) has been studied specifically in IVF contexts. A 2018 randomised controlled trial published in Reproductive BioMedicine Online found that women taking CoQ10 600 mg daily for two months before IVF had significantly more mature eggs retrieved, higher fertilisation rates, and better embryo quality than controls. Ubiquinol at 200–400 mg daily is commonly recommended, with higher doses sometimes used for women over 38.

Other nutrients important for egg quality include: methylfolate (the active form of folate, important for DNA methylation and cell division — particularly important for women with MTHFR gene variants who metabolise folic acid poorly); vitamin D (receptors for vitamin D are found in ovarian granulosa cells, and deficiency is associated with poorer IVF outcomes); omega-3 DHA (a critical structural component of cell membranes, including those of developing eggs); vitamin E (a fat-soluble antioxidant that protects cell membranes from oxidative damage); and iron (deficiency increases chromosomal abnormalities in eggs through impaired oxygen delivery to developing follicles).

Lifestyle factors — particularly avoiding smoking (which accelerates follicle loss and impairs egg quality), maintaining a healthy weight, and moderating alcohol intake — also directly influence the eggs that will be retrieved in an IVF cycle.

Sperm Preparation for IVF

While egg quality rightly receives most of the attention in IVF discussions, sperm quality matters too — perhaps more so in IVF than in natural conception, because in IVF the sperm must perform well enough to fertilise the egg under laboratory conditions, and in ICSI the single sperm selected bears the entire reproductive burden for that egg. Poor sperm quality — particularly high DNA fragmentation — is associated with lower fertilisation rates, poor embryo development, and increased miscarriage risk even in IVF cycles.

The 74–90 day sperm production cycle means that improvements implemented three months before the egg retrieval date will be reflected in the sperm used for fertilisation. Key preparation steps for male partners include:

• Quitting smoking at least 3 months before the IVF cycle begins
• Reducing or eliminating alcohol
• Achieving a healthy weight if overweight
• Avoiding anabolic steroids, recreational drugs, and, where clinically possible, medications that impair sperm (discuss with your prescribing doctor)
• Avoiding prolonged scrotal heat (hot tubs, tight underwear, laptops on lap)
• Taking antioxidant supplementation: CoQ10 (200–600 mg/day), vitamin C (1000 mg/day), vitamin E (400 IU/day), zinc (15–25 mg/day), selenium (55–100 mcg/day), L-carnitine (2 g/day), and omega-3 DHA

If a prior sperm DNA fragmentation test has shown elevated DFI, intensive antioxidant therapy for 3 months before IVF, followed by repeat testing, can guide decisions about whether standard IVF, ICSI, or IMSI (intracytoplasmic morphologically selected sperm injection, using very high magnification to select the best sperm) is most appropriate. Some clinics also offer MACS (magnetic-activated cell sorting) to select sperm with low apoptotic markers, further enriching the sperm used for ICSI in men with elevated fragmentation.

Uterine Health and Implantation Preparation

A healthy uterine environment — particularly the endometrium (uterine lining) — is essential for embryo implantation. In IVF, embryo transfer timing is planned around achieving an optimal endometrial thickness and pattern (typically a trilaminar pattern with thickness ≥7 mm on ultrasound).

Women with conditions affecting the uterus — such as fibroids (particularly submucosal fibroids that distort the uterine cavity), polyps, uterine septa, or intrauterine adhesions (Asherman's syndrome) — typically need these addressed before IVF, as they can significantly reduce implantation rates. A saline sonohysterogram or hysteroscopy before IVF is advisable to ensure the uterine cavity is clear.

The uterine microbiome is an emerging area of interest. The uterus was previously thought to be sterile, but research has identified a distinct uterine microbiome dominated by Lactobacillus species, similar to the vaginal microbiome. Disruption of this microbiome — with an overrepresentation of non-Lactobacillus species — has been associated in some studies with reduced implantation rates. Maintaining vaginal and uterine microbiome health through diet, avoiding unnecessary antibiotics, and, where indicated, using probiotic supplements with appropriate Lactobacillus strains, is an area of active research.

Adequate iron stores are important for endometrial development. Thyroid function must be optimised — even subclinical hypothyroidism (TSH above 2.5 mIU/L) is associated with reduced implantation rates and increased miscarriage risk in IVF. Many reproductive endocrinologists will start thyroid hormone treatment if TSH is above 2.5 in the context of IVF, even if the level would not be treated in a non-IVF context.

Lifestyle Preparation: The Evidence-Based Approach

Many lifestyle factors can be modified in the months before IVF to meaningfully improve outcomes:

Healthy weight: Both underweight and overweight status are associated with worse IVF outcomes. Obesity is associated with lower clinical pregnancy rates, higher miscarriage rates, and higher rates of obstetric complications. Being underweight is associated with poorer ovarian response. Achieving a BMI in the healthy range (18.5–25 kg/m²) — even through modest weight changes — can improve outcomes. However, extreme calorie restriction in the weeks before stimulation is counterproductive and can impair follicle development.

Diet: The Mediterranean dietary pattern — rich in vegetables, legumes, whole grains, olive oil, fish, and fruit — has been associated in observational studies with better IVF outcomes, including higher clinical pregnancy rates and live birth rates. Antioxidant-rich foods (berries, leafy greens, nuts, seeds) are particularly valuable for protecting eggs and embryos from oxidative stress. Reducing ultra-processed foods, refined carbohydrates, and trans fats is advisable.

Alcohol: Alcohol consumption — even at moderate levels — has been associated with reduced IVF success rates. A 2019 study in Epidemiology found that women who consumed 4 or more drinks per week had significantly lower live birth rates from IVF compared to non-drinkers. The safest approach is abstinence or near-abstinence in the months before and during an IVF cycle.

Smoking: Smoking significantly impairs IVF outcomes — it accelerates follicle loss, reduces egg quality, and is associated with higher cycle cancellation rates and lower pregnancy rates per cycle. Women who smoke require higher doses of stimulation medications. The impact on outcomes is measurable even at light smoking levels. Quitting ideally at least 3 months before IVF (but earlier is better) is strongly recommended.

Exercise: Moderate exercise is beneficial — it improves insulin sensitivity, reduces stress, maintains healthy weight, and supports general wellbeing. However, very high-intensity exercise (such as high-volume competitive training) may impair ovarian response in some women. Moderate activity — 30 minutes most days — is the recommended level during IVF preparation. During stimulation and after egg retrieval, strenuous exercise should be limited due to the risk of ovarian torsion (twisting of an enlarged, stimulated ovary).

Sleep and stress: Chronic sleep deprivation raises cortisol and inflammatory markers, which may impair ovarian response. Targeting 7–9 hours of quality sleep is worthwhile. Psychological stress has been extensively studied in IVF, with mixed evidence on its direct impact on outcomes. However, stress unambiguously affects adherence to protocols, decision-making, and quality of life. Mindfulness-based stress reduction (MBSR), acupuncture (which has some evidence for improving IVF outcomes — see below), cognitive behavioural therapy, and support from counsellors or peer support groups can all be helpful.

Supplements and Medications to Discuss with Your Clinic

The following supplements have evidence supporting their use in IVF preparation, though you should always discuss any supplements with your reproductive endocrinologist before starting, as some may interact with stimulation medications or need to be stopped at certain points in the cycle:

• Ubiquinol / CoQ10: 200–600 mg/day, for egg quality and (for male partner) sperm motility. Start at least 2–3 months before egg retrieval.
• Methylfolate: 400–800 mcg/day for the female partner; also advisable for the male partner given its role in sperm DNA integrity.
• Vitamin D: Check blood levels. Deficiency (below 50 nmol/L) should be corrected with supplementation. Optimal levels for IVF are associated with 1000–2000 IU daily in most people, more if severely deficient.
• Omega-3 (DHA/EPA): 1–2 g/day of combined DHA and EPA. Supports egg membrane quality, reduces inflammation, and may improve endometrial receptivity.
• Vitamin E: 400 IU/day — a fat-soluble antioxidant protecting eggs and embryos. Should be stopped 5–7 days before egg retrieval due to antiplatelet effects.
• Myo-inositol: 4 g/day, particularly for women with PCOS or poor ovarian response history. Evidence suggests improved oocyte quality and reduced OHSS risk.
• DHEA: Dehydroepiandrosterone at 25–75 mg/day has been studied in women with diminished ovarian reserve (high FSH, low AMH), with some evidence of improved ovarian response, egg quality, and pregnancy rates. Use only under medical supervision as it has androgenic effects.
• Prenatal vitamin: A comprehensive prenatal vitamin covering folate, iron, calcium, vitamin D, iodine, and B vitamins provides a solid nutritional foundation throughout the IVF preparation period and into pregnancy.

The IVF Timeline: What to Expect Month by Month

A typical IVF preparation timeline might look like this:

3–6 months before: Initial investigations (hormone panel, AMH, AFC, uterine assessment, semen analysis, sperm DNA fragmentation). Address any modifiable factors: smoking cessation, weight management, dietary overhaul, supplement initiation. Treat any identified conditions (fibroids, polyps, thyroid, varicocele, infections).

2–3 months before: Optimisation continues. Review and confirm supplement regimen. Complete any required surgical procedures. Attend clinic orientation if offered. Address psychological preparation — consider counselling or peer support. Both partners confirm alcohol reduction/cessation.

1 month before: Baseline cycle monitoring. Mock embryo transfer (to map the uterus for the actual transfer). Confirm protocol with reproductive endocrinologist. Prepare medications and sharps disposal. Ensure support network is in place for the treatment period.

During stimulation (approximately 10–14 days): Daily injections. Every 2–3 day monitoring appointments. Avoid strenuous exercise. Maintain healthy eating. Minimise stress. Adequate hydration is particularly important.

Egg retrieval and embryo development (5–7 days): Rest after retrieval. Await fertilisation and embryo development reports. Prepare for possible embryo banking (multiple cycles) or fresh transfer.

After transfer or freeze-all: Progesterone supplementation. Two-week wait. Pregnancy test. If positive, continue medications until advised by clinic.

Frequently Asked Questions About IVF Preparation

How far in advance should I start preparing for IVF?
The ideal preparation window is 3–6 months before your planned egg retrieval date. This aligns with the biological timeline of follicle development (follicles take approximately 90 days to develop from early recruitment to ovulatory maturity, meaning conditions in those 90 days influence egg quality) and with the sperm production cycle (74–90 days). Three months is the practical minimum for lifestyle and supplement interventions to have their full effect. Six months allows time to address more complex issues, complete any necessary investigations, and optimise response to initial treatments. If you are already scheduled for an imminent IVF cycle, start what you can immediately — even weeks of improvement are better than none.

Does acupuncture help with IVF success?
Acupuncture is one of the most studied complementary therapies in IVF, and evidence is mixed. Early trials suggested benefits for implantation rates, but larger, better-controlled trials have been less conclusive. A 2018 Cochrane review found no clear evidence that acupuncture around the time of embryo transfer improves live birth rates compared to sham acupuncture. However, acupuncture may be beneficial for stress reduction, anxiety management, and general wellbeing during the IVF process — which are valid reasons to pursue it if you find it helpful. Some reproductive acupuncturists argue that the benefit is in longer-course treatment (throughout the stimulation phase, not just on transfer day), which has been less extensively studied. There is little risk to acupuncture when performed by a qualified practitioner, so if patients wish to try it, most clinics do not discourage it.

What supplements should I stop before egg retrieval?
Several supplements should be stopped in the days to one week before egg retrieval due to potential effects on bleeding, anaesthesia, or embryo development. These typically include: vitamin E (antiplatelet effect — stop 5–7 days before retrieval); high-dose fish oil/omega-3 (antiplatelet — discuss timing with clinic); certain herbal supplements (ginkgo, garlic supplements, ginseng — antiplatelet or hormonal effects). CoQ10, methylfolate, prenatal vitamins, and vitamin D are generally safe to continue through stimulation and retrieval. Always consult your clinic's specific pre-retrieval medication instructions, as protocols vary.

How does a frozen embryo transfer (FET) differ from a fresh transfer, and does preparation differ?
In a fresh embryo transfer, the embryo is transferred 2–5 days after egg retrieval, while the woman's body is still recovering from stimulation. In a frozen embryo transfer (FET), embryos are cryopreserved and transferred in a subsequent natural or medicated cycle, allowing full recovery first. FET cycles have become increasingly preferred — particularly for women at risk of OHSS and those with PCOS — because the uterus has fully recovered, progesterone levels are more physiologically normal, and implantation rates are often equivalent or superior to fresh transfer. Preparation for a FET cycle involves either monitoring natural ovulation (natural FET) or taking oestrogen supplementation to build the endometrium (medicated FET). The pre-IVF preparation discussed in this article applies to the egg retrieval cycle regardless of transfer timing.

Will IVF work if I have diminished ovarian reserve (DOR)?
Diminished ovarian reserve — evidenced by elevated FSH, low AMH, low antral follicle count, or poor response in prior IVF cycles — is challenging but not an absolute barrier to IVF success. The primary limitation is the smaller number of eggs available, which reduces the number of embryos and therefore the cumulative chances of success per cycle. Strategies to improve response in DOR include: higher stimulation doses; dual stimulation protocols (DuoStim); DHEA supplementation for 2–3 months before stimulation; CoQ10/ubiquinol supplementation; and embryo banking across multiple cycles to accumulate embryos before transfer. Success rates with DOR are lower than average but not negligible — particularly with optimised protocols and preimplantation genetic testing (PGT-A) to identify the best embryos. Many women with DOR achieve successful pregnancies through IVF.

Can diet really affect IVF outcomes?
Yes. Several observational studies have found associations between dietary patterns and IVF success. A 2018 study published in Human Reproduction found that women following a Mediterranean dietary pattern in the months before IVF had significantly higher clinical pregnancy and live birth rates than those with the lowest adherence. A 2019 study in Fertility and Sterility linked higher antioxidant dietary scores to better IVF outcomes. The mechanisms are likely multifactorial: dietary antioxidants protect eggs and embryos from oxidative stress; anti-inflammatory dietary patterns reduce inflammatory cytokines that can impair implantation; adequate nutrient intake supports hormone production and endometrial health. While diet alone cannot compensate for structural or genetic barriers to fertility, it is a meaningful and modifiable factor that deserves serious attention in IVF preparation.

What should I do in the two-week wait after embryo transfer?
The two-week wait (2WW) after embryo transfer is often one of the most anxious periods of the IVF journey. From an evidence standpoint: normal, gentle activity is fine — bed rest after transfer has been shown to be unnecessary and possibly counterproductive. Take your prescribed medications (typically progesterone suppositories and sometimes oestrogen) without fail — these are critical for endometrial support. Avoid strenuous exercise, alcohol, and smoking. Do not take a home pregnancy test before the recommended date (usually 10–14 days post-transfer) as these can give false positives from the trigger injection or false negatives too early. Focus on self-care: sleep, gentle walks, social support, and activities that reduce anxiety. Most clinics have nurses or counsellors who can provide support during this period.

How many IVF cycles might I need?
There is no universal answer — success rates per cycle vary widely depending on age, diagnosis, and individual response. For women under 35 with good ovarian reserve and no severe male factor, live birth rates per fresh IVF cycle can be 40–50% or higher in leading centres. However, cumulative success rates across multiple cycles are considerably better than per-cycle rates. Many guidelines and fertility authorities suggest considering up to 3 complete cycles (including all frozen embryo transfers from banked embryos) before reviewing prognosis and alternative options. Some couples conceive on the first cycle; others may need several. Having realistic expectations, a supportive clinic team, and a plan for emotional support through the process is essential.

What genetic testing options are available for IVF embryos?
Preimplantation genetic testing (PGT) is available in two main forms for IVF embryos. PGT-A (preimplantation genetic testing for aneuploidies) screens embryos for chromosomal abnormalities (extra or missing chromosomes). Transferring only chromosomally normal (euploid) embryos significantly reduces miscarriage risk and may improve per-transfer success rates — particularly for women over 35, who have higher rates of chromosomal abnormalities in their eggs. PGT-M (preimplantation genetic testing for monogenic disorders) tests embryos for specific inherited genetic conditions (such as cystic fibrosis, BRCA mutations, Huntington's disease) when parents are known carriers. These tests require a biopsy of 1–5 cells from the trophectoderm (outer layer) of the blastocyst, performed by an embryologist, with results available within days to weeks. The decision to pursue genetic testing should be made in consultation with your reproductive endocrinologist and, in the case of PGT-M, a genetic counsellor.