Optimize Your 90-Day Fertility Window
A free, evidence-based checklist covering the 10 factors with the strongest research links to conception success — for both partners.
Time for sperm to fully mature — what you do now affects fertility 2.5 months later
Amann, 2008
Conception rate within 12 months for couples with optimized lifestyle factors
Gaskins et al., 2018
Higher pregnancy rates in couples who timed intercourse to the fertile window
Wilcox et al., 1995
Fertility isn’t just about age. Modifiable factors explain a significant portion of conception outcomes.
The research is clear: sperm quality, ovarian environment, thyroid function, and lifestyle factors all impact time to pregnancy. Most of these are measurable — and many are improvable.
90-Day Fertility Optimization Checklist
Get the 90-Day Fertility Optimization Checklist
A free, research-backed guide covering the modifiable factors that affect conception — ranked by evidence strength and actionability.
Inside the checklist:
The 74-day sperm cycle and 90-day egg maturation timeline — why starting now matters
10 evidence-based factors ranked by impact on time to pregnancy
Key biomarkers to test: FSH, AMH, TSH, semen analysis — and what the numbers mean
Fertile window timing protocols backed by Wilcox et al. landmark studies
When to seek specialist help: age-based and duration-based thresholds
Topics Covered:
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Every Number in This Checklist Comes From Published Research
Landmark study: only 6 days per cycle with non-zero conception probability — the fertile window
Wilcox et al., 1995 — PMID: 7477165
2-8% conception probability per cycle for women 35-39; highest odds with ovulatory timing
Dunson et al., 2004 — PMID: 14645172
WHO 6th edition semen analysis reference values: 39M total count, 42% motility minimum
WHO, 2021
Meta-analysis: scrotal temperature elevation (laptops, hot tubs) reduces sperm concentration
Durairajanayagam et al., 2015 — PMID: 25646367
Subclinical hypothyroidism (TSH > 2.5) associated with reduced fecundability
Plowden et al., 2016 — PMID: 27002447
CoQ10 supplementation (600mg/day) improved ovarian response markers in poor responders
Xu et al., 2018 — PMID: 29605129
The Fertility Window Is Shorter Than You Think
Every cycle matters. This checklist gives you the evidence-based factors, the biomarkers to track, and the protocols that work — in under 10 minutes.
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