Unexplained Infertility?

Being told you have “unexplained infertility” can feel like hitting a wall, but in reality, it’s a sign that the right things simply haven’t been explored yet. Fertility isn’t random, and it’s rarely “unexplainable.” When you zoom in on gut health, hormones, the microbiome, blood sugar, toxins, stress, nutrient status, and more, the real story almost always reveals itself. This post breaks down the often-overlooked root causes behind “unexplained infertility” and how uncovering them can transform your fertility after 40.

Have you been told you have “unexplained infertility,” “secondary infertility,” or simply “old eggs”?
If so, you’re not alone, and you’re certainly not out of options.

These labels often get used when standard tests come back “normal,” but normal isn’t optimal, and it doesn’t mean everything is functioning the way it needs to for conception.

Before accepting a vague diagnosis, it’s essential to look at your foundation — the interconnected systems that directly influence egg quality, ovulation, implantation, and early embryo development.

Here are the areas I assess with every client:

Gut Health

Are your digestion and microbiome optimized for fertility?
Your gut influences hormones, inflammation, nutrient absorption, immune balance, and even miscarriage risk. Many women have dysbiosis without a single digestive symptom.

Vaginal Microbiome

Do you have the right bacteria for conception and pregnancy?
The vaginal microbiome affects sperm survival, implantation, and early embryo development, yet it’s rarely tested.

Blood Sugar Stability

Are your levels steady throughout the day?
Blood sugar swings disrupt hormones, increase inflammation, and interfere with ovulation and egg quality.

Thyroid Function

Are all your thyroid hormones optimal?
TSH under 2.5 (closer to 1.0) is ideal for conception, but most providers don’t check free T3, free T4, antibodies, or reverse T3 — all critical for fertility.

Uterine Health

Is your uterine environment prepared for implantation? Your uterine lining, blood flow, and inflammation levels all directly influence whether an embryo can attach and develop, yet many women never receive a full assessment of their uterine health.

Vitamin D Levels

Is your vitamin D in the optimal range?
Low levels affect hormones, immunity, egg quality, and implantation — and are extremely common.

Toxin Exposure

Could mold, heavy metals, plastics, pesticides, or other toxins be affecting your fertility?
Environmental toxins disrupt hormones and the immune system and can directly damage egg and sperm quality.

Nervous System Health

How well are you managing daily stress and supporting recovery?
Chronic stress shifts hormone production, impacts ovulation, and increases inflammation.

Protein Intake

Are you eating at least 100 grams of protein per day?
Protein supports hormone production, stable blood sugar, mitochondrial health, and egg quality.

Male Partner Evaluation

Has your partner had a truly comprehensive fertility assessment? Beyond a standard semen analysis, labs evaluating hormones, nutrients, oxidative stress, and environmental exposures can uncover hidden factors affecting sperm quality and overall embryo health.

What “Unexplained Infertility” Really Means

When you hear terms like “unexplained infertility” or “old eggs,” it often means this:

The real root causes haven’t been investigated.

There is a reason. It can be found.
And when it’s addressed, fertility often improves — naturally or with IVF support.

I’ve lived it myself, and I’ve helped countless women uncover the missing pieces in their fertility picture. You deserve answers, clarity, and a path forward.

About Rebecca:
Hi, I’m Rebecca Rumsey! With a Master’s in holistic nutrition and certifications in nutrition, fertility, and exercise science, I help women over 40 overcome complex fertility challenges. After facing significant hormonal issues and being told I was in early menopause, I was able to have two healthy babies at 44 and 46 using evidence-based, holistic strategies. Since then, I’ve helped countless women over 40 navigate complex fertility hurdles, optimize their health, and bring home healthy babies. My journey and my clients’ successes prove that pregnancy well into your 40s is achievable with the right support.

Ready to support your fertility naturally in your 40s?

The Fertile After 40 Masterclass gives you:

✓ Simple, evidence-based steps
✓ Bite-sized videos
✓ Clear guidance tailored for women 40+
✓ Access to a private community for ongoing support
✓ A proven framework that’s helped countless women conceive

Click the Masterclass link to begin your path to pregnancy after 40 — with clarity, strategy, and hope.

Join the natural fertility solutions VIP group (for free) to have access to exclusive content available only to VIP group subscribers!