When to seek fertility help: how long to try before asking for tests

Trying to conceive · Updated July 2026 · All articles

The standard guidance and why it exists

The most widely quoted guideline is to try to conceive for 12 months before seeking medical investigation, or 6 months if you are 35 or older. This guidance comes from population-level data on conception rates: most couples who are going to conceive naturally will do so within 12 months, so waiting a year before investigating avoids unnecessary testing for the majority.

Around 80 percent of couples under 35 who have regular unprotected sex will conceive within 12 months. By 24 months, that figure rises to around 90 percent. The 12-month threshold is therefore a reasonable filter for identifying couples who may need additional support, without putting everyone through a full fertility work-up prematurely.

But these figures are population averages, and averages do not apply to every individual situation. The guideline works well as a default and poorly as a rigid rule. There are many circumstances where waiting a full year before seeking help is not the right call, and knowing those circumstances helps you make a more informed decision about your own timing.

When to go sooner than 12 months

You do not need to wait 12 months if you are over 35. Fertility declines in the mid-30s at a rate that makes every six months significant. For people between 35 and 40, the standard recommendation is to seek investigation after 6 months of trying. For those over 40, earlier still is appropriate given the more rapid decline in both ovarian reserve and egg quality with age.

You also do not need to wait if you have a known condition that is likely to affect fertility. This includes PCOS, endometriosis, a history of pelvic inflammatory disease, previous ovarian surgery, very irregular cycles (more than 35 days or fewer than 21 days), or a history of more than one miscarriage. In any of these cases, seeking initial investigation from the outset of trying to conceive is sensible and will not be considered premature by a GP.

If your partner has previously had a semen analysis showing abnormal results, or has a condition known to affect sperm (such as a history of undescended testes, testicular injury or certain medications), there is no benefit to waiting. Starting the investigation process early lets you gather useful information without the time pressure of having waited a year first.

Conditions that warrant immediate referral

Some situations do not require any waiting period at all. If you have had a hysterectomy, premature ovarian insufficiency (early menopause), a known bilateral tubal blockage, or a condition requiring fertility preservation before medical treatment (such as chemotherapy), you should be referred directly to a fertility specialist. These are situations where the standard waiting period adds no useful information and only delays necessary care.

Recurrent miscarriage (three or more miscarriages at any stage, or two or more after a heartbeat was detected) is also a reason to seek specialist review without waiting to try again. Recurrent pregnancy loss has specific investigations and treatment pathways distinct from general fertility assessment, and most guidelines support early specialist involvement.

If you have had cancer treatment or are about to receive it, fertility preservation options such as egg or embryo freezing should be discussed urgently with a specialist before treatment begins. The window for this is often narrow, and acting quickly is important.

Your GP as first port of call

For most people, the first step is a GP appointment. You do not need to present as having a diagnosed fertility problem to ask for initial investigations. You can simply explain that you have been trying to conceive for a period of time and would like some baseline tests done. GPs are well placed to initiate this and will not consider the request unusual or premature if your timing is appropriate.

Bring both partners if possible. Fertility is a couple issue, and basic investigations are relevant to both. A semen analysis for the male partner is one of the cheapest and most informative first-line tests, and it is often overlooked when only the female partner attends. Around half of fertility difficulties involve a male factor, so investigating both simultaneously saves time.

If you feel dismissed or told to keep trying when you have a valid reason to be investigated sooner, you are within your rights to ask again, see a different GP in the same practice, or ask directly for a referral. You are not being difficult; you are advocating for timely care.

What a GP can offer

Your GP can arrange a useful range of initial fertility investigations. Blood tests typically include Day 3 FSH and oestradiol (measuring ovarian reserve and baseline hormone levels), Day 21 progesterone (confirming ovulation), AMH (ovarian reserve), and thyroid function. Many GPs will also refer you for a pelvic ultrasound to check for PCOS, fibroids or other structural findings.

A semen analysis can be arranged through your GP, usually at a hospital or specialist laboratory. It measures sperm count (concentration), motility (how many are swimming) and morphology (shape). This single test rules in or rules out a significant male factor component, which changes the direction of any further investigation considerably.

Based on the results of these initial tests, your GP may refer you to a gynaecologist, a community fertility service, or a fertility clinic. The route depends on what the tests show and what NHS services are available in your area.

When to consider a private fertility clinic

You do not have to wait for an NHS referral to access fertility investigation or treatment. Anyone can self-refer to a private fertility clinic for an initial consultation. This is a reasonable option if NHS waiting times in your area are long, if you are in an age group where time is particularly important, or if you simply want faster access to a specialist opinion.

An initial private consultation will usually include a review of your history, arrangement of any missing investigations and a discussion of treatment options. The consultation itself is typically a few hundred pounds. Proceeding to treatment privately carries significant additional cost, but the initial assessment can be done privately even if you subsequently pursue treatment through the NHS.

Some private clinics offer affordable initial packages covering a consultation and key investigations. Shopping around for these can make early private assessment accessible even if full private treatment is not your plan. Having a specialist's view earlier, rather than waiting through GP-level delays, can give you useful clarity and direction.

The NHS fertility pathway in England

In England, NHS funding for IVF is allocated through Integrated Care Boards (ICBs, previously CCGs), and criteria vary considerably between areas. Common eligibility factors include age (typically under 40 for first IVF, under 42 for exceptional cases), no existing children (in most areas), body mass index within a specified range, non-smoking status, and completion of a minimum period of trying to conceive.

Waiting times for NHS-funded IVF after a referral can range from several months to over a year depending on the trust and the current demand. This is one reason why starting the investigation process early matters: the time spent on GP-level tests and a gynaecology outpatient appointment may precede a funding decision by a year or more in some areas, and delays at the front end compress the time available for treatment before age-related thresholds are crossed.

If you are close to or over the age threshold for NHS-funded IVF, it is worth asking your GP specifically about urgency and requesting an expedited referral where possible. Asking your GP to include "approaching NHS IVF age limit" in any referral letter can sometimes accelerate triage.

What to bring to your first appointment

Arriving prepared makes your first appointment more productive. Bring a record of your cycle over the past three to six months: dates of periods, cycle length, and any tracking data such as ovulation test results or basal body temperature charts. Note when you started trying to conceive and any relevant history: previous pregnancies or losses, known conditions, medications and relevant family history.

If your partner is not attending, bring their relevant history too: any prior semen analysis results, relevant medical history, medications and any known conditions affecting male reproductive health. Having this information ready means the GP or specialist can make faster decisions about which tests are most useful next.

Write down your questions in advance. It is easy to forget what you wanted to ask in the moment. A short list of three to five questions that matter most to you ensures you leave with the information you actually needed, not just the information that happened to come up.

You do not need to apologise for going early

One of the most common things people say after finally making a fertility appointment is that they wish they had done it sooner. There is a social pressure to keep quiet about fertility concerns, to keep trying privately and not to be seen as impatient. This pressure has no clinical basis and no benefit to you.

If you are within the appropriate timeframe for seeking help based on your age and circumstances, you are not jumping the queue. You are accessing care you are entitled to, at a time when it can do the most good. Waiting longer does not improve outcomes; it sometimes reduces them.

Be direct with your GP. Say clearly that you are trying to conceive, how long you have been trying, and that you would like initial fertility investigations. A clear, specific request is more likely to get a productive response than a tentative one. And if the first appointment is not as helpful as you hoped, you are fully within your rights to try again or seek a second opinion.

Frequently asked questions

Should I wait a full 12 months before seeing a doctor about fertility?

The 12-month guideline applies to people under 35 with no known fertility-affecting conditions. If you are over 35, have a known condition such as PCOS or endometriosis, or have irregular cycles, you do not need to wait 12 months. Six months or sooner is appropriate in many circumstances.

Does going to the GP early affect my chances of NHS funding?

No. Seeking early advice does not affect your eligibility for NHS funding. Funding criteria are based on age, number of prior IVF cycles and whether you have existing children, not on how early you sought advice. Starting investigations earlier actually gives you more time within the NHS pathway.

What will a GP do at my first fertility appointment?

Your GP will take a history from both partners, discuss your cycles, relevant medical history and lifestyle factors, and arrange initial blood tests (Day 3 FSH, oestradiol, Day 21 progesterone and possibly AMH and thyroid function) plus a semen analysis for your partner. They may also refer you for a pelvic ultrasound.

What fertility tests can a GP arrange?

A GP can arrange blood tests including Day 3 FSH, oestradiol, AMH, Day 21 progesterone and thyroid function, plus a pelvic ultrasound and a semen analysis. More specialist tests such as an HSG or laparoscopy require referral to a gynaecologist or fertility clinic.

How long do NHS fertility referrals take in England?

Waiting times vary by NHS trust and region. An outpatient appointment from GP referral can take weeks to several months. Waiting times for NHS-funded IVF treatment itself may be considerably longer. Asking your GP about local waiting times when you are referred helps you plan realistically.

What should I track before my first appointment?

Bring at least three months of cycle records: cycle length, ovulation signs (OPK results or BBT charts if you have them) and any symptoms. Note when you started trying to conceive, any previous pregnancies or losses, and relevant medical history for both partners. This information helps the GP decide which tests are most useful and speeds up the process.

This article is for general information only. If you have concerns about your fertility or reproductive health, speak to your GP or a fertility specialist.