Trying to Conceive: How Long to Try Before Seeing a Specialist

Quick answer: In the UK, the general guidance is to see a specialist after 12 months of regular unprotected sex if you’re under 36, and after 6 months if you’re 36 or over. See someone sooner, without waiting, if you have irregular or absent periods, a known condition like PCOS or endometriosis, previous pelvic surgery or infection, or a reason to be concerned about sperm. A consultation is information, not a commitment to treatment.

There’s a common worry that booking a fertility appointment “too early” is an overreaction: that you should wait longer, try harder, relax. It’s one of the most frequent reasons people delay getting information that would have helped them.

The truth is simpler. There are clear, evidence-based points at which seeing a specialist makes sense, and there are situations where waiting the standard 12 months isn’t the right advice at all. This article sets out both, along with what actually happens at a first consultation.

How long does it normally take to conceive?

Getting pregnant takes longer than most people expect, even when everything is working well. For a healthy couple in their 20s or early 30s, the chance of conceiving in any single cycle is around 20-25%. That’s the monthly baseline, not a sign that something is wrong when it doesn’t happen straight away.

Over time, those monthly chances add up. Around 80% or more of couples under 40 conceive within a year of regular unprotected sex, and a majority of the rest within a second year. This is why the standard advice involves months, not weeks: the numbers need time to play out.

Not conceiving in three or four months is normal, not a red flag. The timelines below are about knowing when the picture shifts from “give it time” to “worth investigating.”

The UK guidance on when to seek help

National guidance in the UK (NICE) gives two clear reference points, based mainly on age:

Under 36 - After 12 months of regular unprotected sex

36 or over - After 6 months

Any age, with a known risk factor - Straight away, don’t wait

The reason age changes the timeline is egg quality and quantity, both of which decline with age and more noticeably from the late 30s. When time itself is a factor, waiting a full year before investigating can matter. That’s why the threshold drops to six months at 36.

When to see someone sooner, without waiting

The 6- and 12-month rules assume there’s no known reason to expect difficulty. If any of the following apply, it’s reasonable to get an assessment early rather than waiting out the clock:

Irregular, very infrequent, or absent periods, a possible sign that ovulation isn’t happening predictably. A diagnosis of PMOS (PCOS), endometriosis, or a thyroid condition. Previous pelvic infection, ectopic pregnancy, or surgery on the ovaries, tubes, or uterus. Known or suspected issues with sperm, or a previous partner who conceived without difficulty where this one hasn’t. Two or more miscarriages. Cancer treatment (past or planned) that can affect fertility.

Being 40 or over and trying is itself a reason not to wait the standard timelines.

If you’re unsure whether something counts as a reason to go early, it usually does. An early assessment costs you very little and can save months.

What happens at a first consultation

A first appointment is a conversation and a set of baseline checks, not a decision about treatment. For most couples it involves:

A discussion of your history: cycle regularity, how long you’ve been trying, previous pregnancies, relevant medical background. Baseline investigations for the woman, typically including an AMH blood test (ovarian reserve) and often an ultrasound / antral follicle count. A semen analysis for the man, a simple, important test that’s easy to overlook, given a male factor is involved in around half of cases. A plan: what the results suggest, whether anything needs further investigation, and what the realistic options are.

The point of the consultation is to replace uncertainty with information about your situation, not a general statistic about people your age.

At Plan Your Baby, consultations are online, and investigations and monitoring can be done at over 450 UK locations, so getting started doesn’t depend on where you live.

Does seeing a specialist mean going straight to IVF?

No, and this is worth saying clearly. Seeing a fertility doctor is about understanding what’s going on. For many couples, the answer isn’t IVF at all. It might be timed ovulation support, treating an underlying condition like a thyroid imbalance or PCOS, addressing a sperm issue, or simply confirming that everything looks healthy and continuing to try with better information.

IVF is one option among several, considered only when the picture calls for it. A consultation is where you find out which conversation you’re actually having.

Frequently asked questions

How long should we try before seeing a doctor? Under 36, after about 12 months of regular unprotected sex. At 36 or over, after 6 months. Sooner if you have irregular periods, a known condition such as PCOS or endometriosis, previous pelvic surgery or infection, or any concern about sperm.

Is it too early to see a fertility specialist after a few months? If you have a known risk factor, no, early is appropriate. Without a risk factor and under 36, most couples are advised to give it a full year, because conception naturally takes time. If you’re anxious, a consultation for information is always reasonable.

Does age change when we should get help? Yes. Because egg quality and quantity decline with age, the recommended point to seek help drops from 12 months (under 36) to 6 months (36 and over). At 40 and over, it’s reasonable not to wait.

What tests are done first? Usually an AMH blood test and an ultrasound / antral follicle count for the woman, and a semen analysis for the man, alongside a review of your history. These give a baseline picture before any treatment is discussed.

Should both partners be tested? Yes. A male factor contributes in roughly half of cases, and a semen analysis is quick and straightforward. Assessing both partners from the start avoids missing something and wasting time.

Key takeaways

  • Under 36: seek advice after ~12 months. 36 and over: after ~6 months.
  • Go sooner, without waiting, if you have irregular periods, a known condition, previous pelvic surgery/infection, sperm concerns, recurrent miscarriage, or are 40+.
  • Conception naturally takes time: around 20-25% chance per cycle, with most couples conceiving within a year.
  • A first consultation is baseline tests and a conversation, not a commitment to IVF.
  • Both partners should be assessed from the start.

Knowing when to ask for help is its own kind of reassurance. If you’ve reached one of these points, or you simply want a clearer picture, that’s exactly what an assessment is for.