Understanding Your Fertility Results
How all the pieces fit together
"Fertility isn't determined by a single test. It's a combination of many different factors working together. Understanding what each result means—and what it doesn't—can make your journey feel a little less overwhelming."
Imagine fertility as a puzzle
No single test can tell the whole story.
Instead, fertility investigations look at different parts of the reproductive process.
For pregnancy to happen naturally, several things need to occur:
✓ An egg needs to mature.
✓ Ovulation needs to happen.
✓ Healthy sperm need to reach the egg.
✓ The fallopian tubes need to be open.
✓ Fertilisation needs to occur.
✓ The embryo needs to travel into the uterus.
✓ The uterine lining needs to be ready for implantation.
Each investigation looks at one or more of these steps.
Blood tests
Blood tests help answer questions such as:
Are you ovulating?
Are your hormone levels appropriate?
Is your ovarian reserve being assessed?
Could thyroid or prolactin problems be affecting fertility?
Blood tests are important—but they cannot show whether your fallopian tubes are open or whether endometriosis is present.
Ultrasound scans
Ultrasound can show:
Ovaries
Follicles
Fibroids
Ovarian cysts
The thickness of the uterine lining
However, a normal ultrasound cannot rule out:
Endometriosis
Blocked fallopian tubes
Pelvic adhesions
Many implantation problems
HSG or HyCoSy
These investigations answer one very important question:
Can the egg and sperm actually meet?
If the fallopian tubes are blocked, fertilisation cannot occur naturally—even if everything else appears normal.
Hysteroscopy
This looks directly inside the uterus.
It can identify problems such as:
Polyps
Fibroids growing into the cavity
Scar tissue
Uterine abnormalities
These conditions may affect implantation or increase the risk of miscarriage.
Laparoscopy
A laparoscopy allows doctors to see conditions that other tests may miss.
It can diagnose:
Endometriosis
Pelvic adhesions
Hydrosalpinx
Damage to the fallopian tubes
For some women, this investigation finally explains years of unexplained infertility.
Semen analysis
A semen analysis helps answer questions such as:
Are there enough sperm?
Do they swim well?
Are they healthy enough to reach the egg?
It is one of the first investigations recommended because male factors contribute to infertility in many couples.
Putting the results together
Example 1
Blood tests: Normal
Semen analysis: Normal
HSG: Both tubes blocked
What this might mean:
Although hormones and sperm appear healthy, the egg and sperm cannot meet naturally because both fallopian tubes are blocked.
Example 2
Blood tests: No ovulation
HSG: Tubes open
Semen analysis: Normal
What this might mean:
The pathway is clear and the sperm appear healthy, but pregnancy cannot occur if no egg is being released.
Treatment may focus on restoring or inducing ovulation.
Example 3
Blood tests: Normal
Ultrasound: Normal
Laparoscopy: Endometriosis diagnosed
What this might mean:
Some conditions simply cannot be detected by routine blood tests or scans.
This is one reason why a person may initially be told they have unexplained infertility before a diagnosis is made.
Example 4
Everything appears normal
Sometimes every routine investigation comes back within expected limits.
This is often described as unexplained infertility.
This can be incredibly frustrating because it doesn't provide a clear reason for the difficulty conceiving.
Researchers believe that some causes may involve factors that current routine tests cannot yet detect.
Example 5
Low sperm count
Blocked tube
Sometimes more than one factor is contributing.
Fertility problems are not always caused by a single issue.
It's possible for both partners to have factors affecting fertility at the same time.
What if my results are abnormal?
An abnormal result isn't a judgement.
It isn't your fault.
It isn't something you caused by wanting a baby too much, working too hard or failing to relax.
It is simply information.
And information helps doctors recommend the most appropriate next steps.
Questions you may wish to ask your doctor
Which parts of the fertility process have now been assessed?
What have my results ruled out?
Is there anything that still hasn't been investigated?
What do you think is the most likely explanation for our infertility?
What are the next steps?
A gentle reminder
Every fertility journey is unique.
Two people with exactly the same test results may receive different recommendations depending on:
Their age
Their medical history
How long they've been trying to conceive
Previous pregnancies
Symptoms
Personal preferences
Your healthcare team will help interpret your results in the context of your individual circumstances.
Georgina's Note ❤️
When I was going through fertility investigations, I thought every normal result was taking me further away from an answer.
Normal blood tests.
Normal ovulation.
No obvious explanation.
Each appointment seemed to end with more uncertainty.
What I didn't realise was that the puzzle wasn't complete.
The pieces I'd been given simply weren't enough to show the whole picture.
When the missing investigations were finally carried out, everything made sense.
That doesn't happen for everyone, and many people will continue to have unexplained infertility despite thorough investigations.
But understanding what each test can—and can't—tell you helped me realise something important:
No single result defines your fertility journey.
It's only when all the pieces are placed together that the picture begins to emerge.
And sometimes, the missing piece isn't hope.
It's information.