Navigating Infertility: Where to Start When You Don't Know What's Wrong
An infertility diagnosis — or even the suspicion of one — rarely comes with a clear roadmap. Standard medical evaluations identify a probable cause in roughly 80% of cases, leaving approximately 20% labeled "unexplained infertility." Even in the 80% where a diagnosis exists, the diagnosis often only partially explains the difficulty conceiving, and the treatment plan may address the diagnosis without addressing all contributing factors. Knowing where to start means understanding the full scope of what affects fertility — not just what a standard workup measures.
KEY INSIGHT
Even when a diagnosis exists, it often only partially explains the difficulty conceiving — a treatment plan that addresses only the diagnosis may leave significant contributing factors unresolved.
Understanding What a Standard Workup Covers
A typical initial fertility evaluation includes: day-3 FSH, estradiol, and AMH to assess ovarian reserve; a transvaginal ultrasound for antral follicle count; an HSG (hysterosalpingogram) to assess tubal patency and uterine cavity; and a semen analysis for the male partner. These tests are valuable but do not measure egg quality, sperm DNA fragmentation, uterine microbiome, immune implantation factors, thyroid function at fertility-relevant thresholds, or the nutritional factors that support folliculogenesis and early embryo development. Many couples who receive a "normal" workup have identifiable contributing factors that standard testing didn't include.
20%
of infertility cases are labeled "unexplained" — meaning standard testing found no clear cause, even though contributing factors often exist
The Most Commonly Missed Contributing Factors
In clinical practice, the factors most frequently identified beyond the standard workup include: subclinical hypothyroidism (TSH between 2.5–4.5 mIU/L, which falls within the "normal" reference range but is associated with reduced fertility and higher miscarriage rates); iron deficiency (ferritin below 30 ng/mL impairs ovulatory function even without frank anemia); vitamin D insufficiency (below 30 ng/mL, associated with reduced implantation rates and higher miscarriage risk); elevated sperm DNA fragmentation (not measured in standard semen analysis but present in up to 25% of male partners); and insulin resistance (common in PCOS and sometimes present without the classic markers).
📊 WHAT THE RESEARCH SAYS
Elevated sperm DNA fragmentation is present in up to 25% of male partners yet is not included in a standard semen analysis. Studies show that high DNA fragmentation is associated with lower fertilization rates, poorer embryo development, and increased miscarriage risk — even when all standard semen parameters appear normal.
"A TSH that falls within the 'normal' reference range can still be associated with reduced fertility and higher miscarriage rates — fertility-relevant thresholds are not the same as standard lab thresholds."
✦ KEEP READING
- Fertility Vitamins for Both Partners: What He Needs Is Different From What You Need →
- Infertility and Stress: Why 'Just Relax' Is Bad Advice — and What Actually Helps →
- Trying to Conceive While Working Full-Time: What Actually Has to Give →
- The Truth About Drinking When You're Trying to Get Pregnant →
✦ KEEP READING
- Fertility Vitamins for Both Partners: What He Needs Is Different From What You Need →
- Infertility and Stress: Why 'Just Relax' Is Bad Advice — and What Actually Helps →
- Trying to Conceive While Working Full-Time: What Actually Has to Give →
- The Truth About Drinking When You're Trying to Get Pregnant →
Not Sure What Your Body Needs?
Take our free 2-minute quiz and get a personalized supplement protocol built around your specific cycle, hormones, and health signals.
Take the Quiz → Explore the App →
⚠️ IMPORTANT
A "normal" fertility workup does not mean there are no contributing factors — it means the standard panel didn't identify any. Many of the most clinically significant factors (thyroid function at fertility thresholds, ferritin, vitamin D, sperm DNA fragmentation) require additional, specific testing to detect.
✦ THE CONCEIVABLE SYSTEM
Personalized Supplements. AI Care Team. The Halo Ring.
Everything your body needs to optimize fertility — built around your data, not someone else's.
Take the Quiz → Check Out the App →
Frequently Asked Questions
What does "unexplained infertility" actually mean?
Unexplained infertility means a standard workup — which typically includes ovarian reserve testing, an HSG, and a semen analysis — did not identify a clear cause. It does not mean there are no contributing factors. It means the factors that exist weren't captured by the tests that were run. Many people with an unexplained infertility label have identifiable issues when a more comprehensive evaluation is performed.
Which additional tests are most worth asking about beyond the standard workup?
The most clinically relevant additions to a standard workup include: TSH (with a fertility-specific threshold of below 2.5 mIU/L), ferritin (targeting above 30 ng/mL), vitamin D (25-OH), sperm DNA fragmentation testing, fasting insulin and glucose, and in some cases a uterine microbiome evaluation or immune implantation panel. Which tests are most relevant depends on your individual history, but these are the most commonly missed.
Can nutritional and lifestyle factors make a meaningful difference even if I'm pursuing IVF or IUI?
Yes — and this is one of the most underappreciated points in fertility care. Egg quality, sperm DNA integrity, uterine receptivity, and embryo development are all influenced by nutritional status, inflammation, oxidative stress, and metabolic health. Addressing these factors doesn't replace assisted reproduction — it supports it and can meaningfully affect outcomes.
How does the Conceivable system actually work?
Conceivable combines three things: personalized supplement packs built from your quiz results and health data, an AI care team of 7 specialists (led by Kai, your fertility coordinator) who adjust your protocol as your body changes, and the Halo Ring for continuous biometric tracking. The system is built on 240,000+ clinical data points and 20 years of practice. It starts at $15/month.
How do I know which supplements I actually need?
Take the free 2-minute Conceivable quiz. It analyzes your cycle patterns, energy, stress, digestion, and health history to identify the specific nutrients your body needs — not a generic prenatal, but a protocol built for exactly where you are right now.
Do I need the Halo Ring to use Conceivable?
No. The Halo Ring is optional and adds continuous tracking of BBT, HRV, sleep, and blood glucose — which Kai uses to fine-tune your protocol in real time. But the personalized supplement packs and AI care team work without it. The ring is a one-time $250 purchase with no subscription required.
Kai is your AI fertility coordinator — trained on 25 years of clinical data. She can answer your specific questions right now.
Chat with Kai →