Six months of trying to conceive can feel like a long time. If you are reading this after month six with no positive test in sight, it makes sense to want answers. The good news is that at six months, most couples are still statistically within the normal range, and there are practical steps you can take right now.
Is 6 Months a Long Time When Trying to Conceive?
Not necessarily, though it rarely feels that way.
According to NHS guidance, around 84% of couples who have regular unprotected sex will conceive within 12 months. Regular means roughly every two to three days, throughout the cycle, not just around ovulation. If you have been doing that consistently, six months means you are still within a range where conception often happens without any intervention at all.
That said, statistics are population-level averages. They do not tell you much about your specific situation. And that is precisely why six months is a useful moment to pause, take stock, and think about whether there is anything worth looking into.
Why Male Fertility Is Worth Checking Early
Here is something many couples do not realise: male factors are involved in around 40–50% of all fertility difficulties. That means in roughly half of cases where a couple is struggling to conceive, the sperm is part of the picture, not just the eggs or the hormones.
Despite this, male fertility is often the last thing to be investigated. The default tends to be for the woman to make GP appointments, track cycles, and monitor ovulation, while the man waits to see if something is needed later. This approach delays answers that could be useful much sooner.
A semen analysis looks at sperm count, how well sperm move (motility), and the proportion with a normal shape (morphology). These three parameters, assessed against WHO reference values, give a clear picture of whether sperm health is likely to be a contributing factor. The test is straightforward, non-invasive, and can be done at home.
Getting a sperm test at six months is not jumping the gun. It is simply gathering information that is relevant to both partners equally.
What Else Makes Sense at 6 Months
Beyond testing, six months is a sensible point to look at a few other areas.
Timing and frequency
The fertile window is typically the five days before ovulation and the day of ovulation itself. Having sex every two to three days throughout the month, rather than only around ovulation, is the approach most fertility clinicians recommend. Ovulation tracking apps and predictor kits can help with awareness, though they are not essential.
Lifestyle factors that affect sperm
Because sperm takes around 72–74 days to fully mature, the lifestyle choices a man makes today will not show up in a semen analysis result for two to three months. The factors with the most consistent evidence behind them include:
- Body weight: both underweight and overweight are associated with lower sperm quality
- Alcohol: heavy drinking is linked to reduced sperm concentration and motility
- Smoking: associated with reduced sperm count and increased DNA damage
- Heat: regular use of saunas, hot baths, or keeping a laptop on the lap for long periods can raise scrotal temperature, which affects sperm production
- Stress: the evidence is less direct, but chronic stress can disrupt the hormones that regulate sperm production
None of this requires perfection. Small, consistent changes over a couple of months can make a measurable difference.
When the woman should see a GP
For women, a GP visit makes sense at six months if there are any known risk factors: irregular or absent periods, a history of pelvic inflammatory disease, endometriosis, PCOS, or previous abdominal surgery. For women over 35, NICE recommends seeking an assessment earlier rather than waiting for the 12-month mark.
What Happens if Nothing Has Changed at 12 Months
For most couples, the formal threshold for NHS fertility investigations is 12 months of regular unprotected sex without conception. At that point, NICE guideline CG156 recommends that both partners are offered investigations simultaneously, not sequentially.
For men, this means a semen analysis. NICE also recommends a full hormone profile alongside semen analysis in some cases, as hormonal imbalances can affect sperm production and are treatable once identified.
If you want to get ahead of that process rather than wait, a private at-home sperm test means you arrive at the 12-month mark with data already in hand, rather than starting from scratch.
Frequently Asked Questions
Q: Should I get a sperm test after 6 months of trying to conceive?
There is no rule saying you have to wait. Getting a sperm test at six months is a proactive step, not an overreaction. Male factors are involved in around half of all fertility difficulties, so testing both partners early means you have more information to act on, rather than finding out later that sperm health was a factor all along.
Q: What is a normal sperm test result?
The WHO 2021 reference values define normal as: sperm concentration of 16 million per millilitre or more, total motility of 42% or above, and normal morphology of 4% or above. A result below any of these thresholds does not mean conception is impossible, but it does suggest further investigation or lifestyle changes may be worthwhile.
Q: When does the NHS refer couples for fertility investigations?
For most couples, NHS referral for fertility investigations is recommended after 12 months of regular unprotected sex without conception. Women over 35 or those with known risk factors (such as irregular periods, PCOS, or endometriosis) may be referred earlier, typically after six months.
Q: Can lifestyle changes improve sperm quality?
Yes, for many men they can. Because sperm takes around 72–74 days to mature, changes to diet, alcohol intake, smoking, and weight can improve semen parameters, but results take two to three months to show up in a test. Starting those changes sooner gives you a better picture of your actual baseline.
Q: Does stress affect fertility?
The direct evidence is mixed, but chronic stress can disrupt the hormonal signals that regulate sperm production. It can also affect libido and frequency of sex, which matters for timing. Managing stress is worth doing for general health reasons, even if its specific impact on fertility is hard to isolate.
Six months in, the most useful thing you can do is gather information rather than sit with uncertainty. Checking sperm health is a simple, practical step that many couples wish they had taken earlier. Malebox's at-home sperm test gives you a full semen analysis with a clinical consultation, results measured against WHO guidelines, and no GP referral needed, from £240, with free next-day delivery.
References
- NHS. (2022). Trying to get pregnant. NHS.uk. https://www.nhs.uk/pregnancy/trying-for-a-baby/how-long-does-it-take-to-get-pregnant/
- World Health Organization. (2021). WHO Laboratory Manual for the Examination and Processing of Human Semen (6th ed.). WHO Press. https://www.who.int/publications/i/item/9789240030787
- NICE. (2013, updated 2017). Fertility problems: assessment and treatment (Clinical guideline CG156). National Institute for Health and Care Excellence. https://www.nice.org.uk/guidance/cg156
- Agarwal, A., Mulgund, A., Hamada, A., & Chyatte, M. R. (2015). A unique view on male infertility around the globe. Reproductive Biology and Endocrinology, 13, 37. https://doi.org/10.1186/s12958-015-0032-1
- Sharma, R., Biedenharn, K. R., Fedor, J. M., & Agarwal, A. (2013). Lifestyle factors and reproductive health: taking control of your fertility. Reproductive Biology and Endocrinology, 11, 66. https://doi.org/10.1186/1477-7827-11-66
