How Long Should Couples Try Before Fertility Testing?
Doctors’ Real Answers, Explained Clearly
Author: Dr Lauren Holland, Clinical Lead – Marylebone Diagnostic Centre
Many couples ask the same question: “How long should we try before getting tested?”
The answer depends on age, history, and symptoms. Waiting too long can add stress. Testing too early can feel unnecessary. The right timing is about balance and clarity.
Why This Question Matters
Trying to conceive is emotional. Uncertainty increases stress, which can affect fertility. Many couples delay testing because:
- They feel it is “too soon”
- They believe fertility issues are rare
- They assume the issue is only female
In reality, fertility challenges are common and often shared.
General Guidance: When to Consider Fertility Testing
| Situation | When to Consider Testing |
|---|---|
| Under 30, no symptoms | After 12 months |
| Age 30–34 | After 6–12 months |
| Age 35–37 | After 6 months |
| Age 38+ | As early as possible |
| Irregular cycles or symptoms | Early testing |
| Previous miscarriage | Early testing |
These are guidelines, not rules.
Why Age Matters in Fertility
Fertility declines gradually, then more quickly.
- Women: Egg quantity and quality decline with age; hormonal balance changes earlier than many expect
- Men: Sperm quality can decline; hormonal changes affect fertility and DNA integrity
Age alone does not determine fertility, but it affects timelines.
Symptoms That Suggest Testing Sooner
Couples may benefit from earlier testing if there are:
- Female symptoms: Irregular or absent periods, very painful periods, thyroid conditions, known hormonal imbalance
- Male symptoms: Low libido, low energy, previous testicular issues, known hormone imbalance
- Shared factors: Previous miscarriage, known medical conditions, significant stress, planning IVF
Why Testing Both Partners Matters
Fertility challenges are shared. Statistics show:
- Around 40% female factors
- Around 40% male factors
- Around 20% combined or unexplained
Testing only one partner often delays answers.
What Fertility Blood Tests Can Reveal Early
- Hormonal imbalance
- Thyroid dysfunction
- Metabolic stress
- Nutritional deficiencies
Many of these are modifiable once identified.
Fertility Testing vs “Waiting It Out”
Waiting without testing can lead to:
- Months of uncertainty
- Increased stress
- Delayed intervention
Early testing supports better planning, informed decisions, and reduced anxiety. It does not commit couples to treatment.
Fertility Testing Before IVF
Many couples test fertility only after IVF referral. Earlier testing can help with:
- Better IVF preparation
- Fewer delays
- More targeted treatment discussions
Blood results help couples engage more confidently with clinics.
When Is Fertility Testing Too Early?
Testing may feel early if:
- You have only just started trying
- There are no symptoms
- Both partners are under 30
However, some couples prefer a baseline for reassurance. There is no harm in understanding fertility health early.
Who Should Consider a Couples Fertility Assessment?
This assessment is suitable if you:
- Have been trying for 6–12 months
- Are over 30
- Want clarity before IVF
- Have a history of miscarriage
- Want to reduce uncertainty
It supports planning, not pressure.
There is no perfect time to test. There is only informed timing. Fertility testing provides clarity. Clarity reduces stress.
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