Key takeaways
- What Is Infertility
- Infertility Is a Couple’s Concern
- How Does Pregnancy Normally Happen
- Common Causes of Infertility in Women
Overview
Most couples begin trying for a baby with hope and excitement. When pregnancy does not happen as expected, that excitement can slowly turn into worry.
Questions begin to appear: Are we trying at the right time? Should we wait longer? Is something wrong? Do we need fertility treatment?
Difficulty conceiving is more common than many people realise. It may be connected with the female partner, the male partner, both partners or sometimes no clear reason may be found.
Understanding infertility is the first step towards replacing fear and guesswork with clear information.
What Is Infertility?
Infertility generally means that pregnancy has not happened after a couple has been trying regularly for a certain period.
As a general guide:
- Couples may consider a fertility consultation after trying for around one year when the female partner is under 35.
- When the female partner is 35 or older, a consultation may be helpful after around six months.
- At 40 or older, it may be sensible to speak to a fertility specialist when beginning to plan a pregnancy.
These are general timelines, not strict rules. You may choose to seek advice earlier if periods are irregular, there is a known medical concern or you simply want guidance.
A fertility consultation does not mean that IVF will be required. It is simply a way to understand whether anything may be affecting conception.
Infertility Is a Couple’s Concern
Fertility is often treated as mainly a woman’s responsibility. This is neither fair nor medically correct.
Pregnancy depends on several factors involving both partners. Difficulty conceiving may be related to:
- A female fertility factor
- A male fertility factor
- Factors involving both partners
- A cause that is not identified through standard testing
Both partners should therefore be evaluated from the beginning whenever possible.
This approach saves time, reduces unnecessary blame and gives the fertility specialist a more complete understanding of the couple’s situation.
How Does Pregnancy Normally Happen?
For natural pregnancy to occur, several things need to come together:
- An egg needs to be released from an ovary.
- Sperm need to be present and able to reach the egg.
- At least one fallopian tube needs to be open.
- The egg and sperm need to meet.
- The fertilised egg needs to reach the uterus.
- The uterus needs to support the developing pregnancy.
If one part of this process is affected, conception may take longer.
This does not always mean that pregnancy is impossible. It may simply mean that the couple needs more time, medical guidance or fertility support.
Common Causes of Infertility in Women
Female fertility may be influenced by ovulation, age, ovarian reserve, the fallopian tubes, the uterus or certain health conditions.
### Irregular ovulation
Ovulation is the release of an egg from an ovary.
If ovulation does not happen regularly, there may be fewer opportunities for the egg and sperm to meet. Irregular or frequently missed periods can sometimes suggest irregular ovulation.
Conditions such as PCOS may affect ovulation, although irregular periods can have several possible causes.
### Age-related changes
Female fertility changes naturally with age. Both the number and quality of eggs gradually reduce over time, with the change becoming more important after the mid-thirties.
This does not mean pregnancy cannot happen after 35. Many women conceive naturally and have healthy pregnancies in their late thirties and beyond.
However, age can influence how long a couple should continue trying before seeking advice.
### Lower ovarian reserve
Ovarian reserve refers to the approximate number of eggs remaining in the ovaries.
A lower reserve does not mean that there are no eggs or that natural pregnancy is impossible. It can, however, make time an important part of fertility planning.
Tests such as AMH and an ultrasound may help the doctor understand ovarian reserve.
### Blocked fallopian tubes
The fallopian tubes are where the egg and sperm usually meet.
If one tube is blocked, natural pregnancy may still be possible through the other open tube. If both tubes are affected, the doctor may discuss other options.
An HSG is one of the tests that may be recommended to check whether the tubes appear open.
### PCOS
PCOS is a common condition that can make periods and ovulation irregular.
Many women with PCOS conceive naturally. Others may benefit from support to help ovulation happen more regularly.
Having PCOS does not automatically mean that IVF will be needed.
### Endometriosis
Endometriosis may affect the ovaries, fallopian tubes or other areas involved in conception.
Its effect on fertility varies considerably. Some women with endometriosis conceive without treatment, while others may need fertility support.
### Uterine concerns
Certain conditions affecting the uterus may make conception or pregnancy more difficult for some women.
The importance of any finding depends on its size, position and effect on the uterus. Not every finding requires treatment.
Common Causes of Infertility in Men
Male fertility is commonly evaluated through a semen analysis.
This test looks at factors such as the number of sperm, their movement and their general shape.
Possible reasons for a male fertility concern may include:
- A lower sperm count
- Reduced sperm movement
- Differences in sperm shape
- Hormonal concerns
- Previous infections
- Previous surgery or injury
- Certain medicines or medical treatments
- A blockage affecting the release of sperm
- Genetic factors
- Lifestyle or environmental influences
Sometimes, the semen result may be outside the expected range even when no clear reason is identified.
An abnormal semen report does not automatically mean that natural conception is impossible or that IVF will be required.
What Is Unexplained Infertility?
Sometimes, the usual fertility tests do not identify a clear reason why pregnancy has not happened. This may be described as unexplained infertility.
This does not mean that the difficulty is imaginary or that nothing can be done. It means that the common tests have not found a specific cause.
The fertility specialist will consider:
- The couple’s ages
- How long they have been trying
- Previous pregnancies
- The results of both partners
- Whether they have already tried any treatment
Based on this information, the doctor may recommend continuing naturally for a defined period or considering fertility support.
What Is Secondary Infertility?
Secondary infertility means having difficulty conceiving after a previous pregnancy.
People sometimes assume that because they conceived before, it should happen easily again. However, fertility can change with age, health, time and other circumstances.
Secondary infertility is a genuine fertility concern. Couples experiencing it deserve the same understanding and support as those trying for their first child.
A previous pregnancy is useful information, but it does not rule out a new fertility issue.
Can Lifestyle Cause Infertility?
General health can influence fertility, but infertility should not be treated as someone’s fault.
The doctor may discuss:
- Smoking
- Alcohol use
- Sleep
- Physical activity
- Significant weight changes
- Certain medicines or supplements
- Anabolic steroids or testosterone
- Long-term health conditions
- Workplace or environmental exposure
Healthy, sustainable changes may support fertility and general wellbeing. However, they should not replace proper evaluation when pregnancy is taking longer than expected.
Avoid extreme diets, unproven supplements or programmes promising guaranteed pregnancy.
Does Stress Cause Infertility?
Trying to conceive can be stressful, especially when every month brings new hope followed by disappointment.
Stress may affect sleep, relationships, sexual wellbeing and how frequently a couple tries. However, couples should not be told that they are failing to conceive simply because they are worrying too much.
“Just relax” is not a fertility plan.
Emotional support can make the journey easier, but it should be offered alongside appropriate fertility care—not instead of it.
When Should You Seek Help Earlier?
You do not always have to wait for the usual six-month or one-year timeline.
An earlier consultation may be useful when:
- Periods are very irregular or frequently missed.
- PCOS or endometriosis has already been diagnosed.
- There is a known concern involving the fallopian tubes.
- Either partner has previously received treatment that may affect fertility.
- The male partner has a known fertility concern.
- There have been repeated pregnancy losses.
- The female partner is 35 or older.
- You are concerned about delaying pregnancy.
- You want reliable guidance before trying.
Seeking advice early does not commit you to testing or treatment. It can simply help you understand your position.
What Fertility Tests May Be Recommended?
The doctor will select tests based on the couple’s age, history and individual circumstances.
A fertility evaluation may include:
- A discussion about menstrual cycles and previous pregnancies
- Selected blood tests
- An ultrasound
- An AMH test
- An assessment of the fallopian tubes
- A semen analysis
Not every couple needs every available test.
Each test should have a clear purpose and help the doctor decide what to recommend next.
Does Infertility Always Mean IVF?
No.
IVF is only one fertility treatment. Depending on the cause and circumstances, the doctor may recommend:
- Continuing to try naturally
- Better understanding of the fertile window
- Support with ovulation
- Treatment of an identified condition
- IUI
- IVF
- IVF with ICSI
- Donor treatment in selected situations
Some couples may not need fertility treatment at all. Others may benefit from beginning treatment sooner.
The right option depends on the complete evaluation of both partners.
Questions to Ask a Fertility Specialist
You may want to ask:
- Do both of us need fertility tests?
- What are the possible reasons pregnancy has not happened?
- Which tests are necessary?
- Can we continue trying naturally?
- Are any simpler treatment options suitable?
- How does age affect our plan?
- At what point would you consider IUI or IVF?
- How long should we try each option?
- What will the complete evaluation cost?
- When should we review the plan?
A good fertility specialist should explain the answers in language you can understand.
Infertility Is Not a Personal Failure
Difficulty conceiving can affect confidence, relationships and emotional wellbeing. It may feel especially isolating when people around you appear to become pregnant easily.
Infertility is a health concern—not a punishment, a weakness or anyone’s fault.
For some couples, pregnancy simply takes more time. For others, testing identifies something that can be addressed. Some may need fertility treatment, while others may conceive without it.
The most helpful next step is not to search for someone to blame. It is to understand the fertility of both partners and create a plan based on clear information.
An infertility diagnosis does not decide whether you will become a parent. It marks the beginning of understanding which path may be right for you.