The Sperm DNA Window™
90 days with Dr. Leila Fazlicic, D.Ac., L.Ac.
Your clinic said the embryos looked good on Day 3. By Day 5, they had arrested.
If your last IVF cycle ended with Day 3 embryo arrest, a chemical pregnancy, failed fertilization, or a chromosomally normal embryo that didn’t implant — and the male side got a semen analysis that came back “normal” — there is a variable your clinic didn’t test.
Sperm DNA fragmentation is one of the most under-tested contributing factors in failed cycles, and it is not on a standard semen analysis. Half of every embryo’s DNA comes from sperm. The standard analysis tests neither the integrity nor the quality of that contribution.
Sperm regenerates completely every 90 days. That window is biology. It’s the only one you have before your next retrieval.
Built for the way men actually handle this.
Private by design. No email required to start the assessment. No partner notifications. No group calls. No community forums. Ever. Your portal is yours alone. Your private messages to Dr. Leila stay between you and her.
Private. No email required. 3 minutes.
Built by Dr. Leila Fazlicic, D.Ac., L.Ac. — 15 years of clinical fertility practice, Top Doctor 2024.
An evaluation of lifestyle and environmental drivers — not a medical diagnosis. Coordinated alongside your fertility clinic care.
Inside the portal
Every day the platform adapts your focus around the drivers most likely affecting your next cycle.
Optimize sperm for the next cycle by following biology, not trends.
To optimize sperm quality before your next cycle, you need to know:
- 1
What is damaging sperm right now
Identify your primary oxidative-stress drivers.
- 2
When to start optimizing
Calculate your strict 74–90 day biological window.
- 3
What to do each day over the next 90 days
Execute your personalized daily action steps.
After failed IVF cycles, many couples are told:
“Everything looks normal.”
But standard semen analysis can miss elevated sperm DNA fragmentation, oxidative stress, and lifestyle-driven biological strain affecting embryo quality and fertilization potential.
You came home with "we don't really know why."
The cycle didn't take. Or the embryo arrested. Or a chromosomally normal embryo didn't make it through transfer. Your RE pointed to egg quality, transfer timing, lining. The male side got a standard semen analysis — count, motility, morphology — and the numbers looked fine.
Sperm DNA fragmentation isn't on a standard semen analysis. And half of every embryo's DNA comes from sperm.
The 90 days before your cycle is the only window to transform that variable — once conception happens, it's fixed.
After your cycle failed, did anyone test his DFI?
Standard semen analysis measures count, motility, and shape. It doesn’t measure whether the DNA inside the sperm is intact. A separate test — sperm DNA fragmentation index, or DFI — does. And it’s the test most clinics don’t run unless specifically asked.
If you didn’t get one, you don’t know whether sperm DNA fragmentation contributed to what happened. Nobody does. That’s not because it wasn’t possible to find out — it’s because the test wasn’t ordered.
The 90 days before your next cycle is the only window to transform sperm. It’s the one span where the male side can actually change before the next attempt — because sperm built today is the sperm used in that cycle, and the biology only opens this window once per cycle.
The 3-minute assessment identifies which of the seven lifestyle drivers is most likely affecting his sperm DNA right now — so the window has a target, with or without the lab test.
This platform is designed for couples who:
- ●Are preparing for IVF or another retrieval
- ●Had failed fertilization, poor embryos, or failed transfers
- ●Were told semen analysis looked “normal”
- ●Want a structured plan instead of random supplements
- ●Believe the male side deserves deeper attention before the next cycle
STEP 1 — IDENTIFY
Find out which drivers are damaging sperm DNA right now.
DNA fragmentation does not have one cause. It has seven. The 3-minute clinical symptoms check maps your daily inputs against the 90-day sperm development window and shows which drivers are most likely working against your sperm DNA quality in your specific situation.
What you find out:
- ●Your primary driver — the single biggest factor currently damaging sperm DNA
- ●Your full driver profile across all seven categories
- ●Where to focus across the next 90 days before your next attempt
- ●A short action plan that fits alongside your medical care
3 minutes. Private. No email required to start.
An evaluation of lifestyle and environmental drivers — not a medical diagnosis.
Built by Dr. Leila Fazlicic, Top Doctor 2024, with 15 years of clinical experience.
Plan your timing
90-Day Start-Date Calculator
When should I start?
Sperm takes about 90 days to fully regenerate. Enter the date your next IVF cycle / retrieval is scheduled, and we'll tell you the exact day to start.
Common questions
Why 90 days?
Spermatogenesis — the full production cycle of a sperm cell from stem cell to mature, ejaculated sperm — takes about 74 days, plus another 10–14 days of transit through the epididymis. The sperm that show up in your sample today reflect choices made roughly three months ago. That's why we anchor the protocol to a 90-day window before retrieval.
What if my retrieval is less than 90 days away?
Start today. The last 60–70 days of spermatogenesis are the most responsive to lifestyle changes, so even a partial window is worth running. The calculator will tell you which state you're in: full 90 days available, partial window, or too close to make this cycle.
What if my date moves?
Re-enter the new date and the protocol shifts with it. The 90-day countdown is anchored to retrieval / cycle day, not to when you signed up.
Do I need a specific sperm test result first?
No. The protocol is the same regardless of baseline numbers — DFI, count, motility, morphology all respond to the same upstream inputs (oxidative stress, heat, sleep, micronutrients). A baseline DFI test is helpful to track progress but isn't required to start.
Still have questions? hello@cycledecoded.com
STEP 2 — REPAIR
The full Sperm DNA Window™ that protects the sperm being built for your next cycle.
Built and delivered by Dr. Leila Fazlicic, D.Ac., L.Ac. — Top Doctor 2024, with 15 years of clinical fertility practice. Structured around the 90-day spermatogenesis cycle, sequenced across three phases — Foundation, Momentum, Full Cycle — and personalized to the specific driver your assessment identified. Run as a day-by-day plan with a daily check-in and personalized balancing suggestions to reduce the oxidative stress that drives sperm DNA fragmentation.
Not a guide. Not a supplement bundle. A complete clinical system you actually run for 90 days.
What 90 days actually does to sperm health
- Day 0Slow, fragile swimmers
- Day 30Less inflammation, less oxidative stress
- Day 60Stronger, faster, more uniform
- Day 90Cycle-ready for conception
Sperm regenerates every 74–90 days (Heller & Clermont, 1963). The sperm released at Day 90 was built under the protocol you start today.
What's inside
Your Day 1 plan, generated from your intake
Not a generic checklist. Three specific actions, one per pillar, built from the bottlenecks your 16-question clinical intake flagged. Every action has a “why this works” explanation underneath. You start the day you finish the intake.
Your Today queue — adaptive to how the day goes
A 30-second daily check-in. Stressed, drained, ate badly, solid day, crushed it. The portal queues the micro-actions that respond to those specific inputs — you don’t run the same protocol on a “drained” day that you run on a “crushed it” day.
12 weeks of private 1:1 messaging with Dr. Leila
Inside the portal, you have direct access to Dr. Leila for the full 90 days. Ask anything — your DFI numbers, whether to keep the CoQ10 with breakfast or lunch, how the protocol fits around your IVF schedule, what to do about a partner who isn't fully on board, why a specific recommendation is in your plan.
Send as many questions as you need. She replies personally, typically within 72 hours. Every message stays between you and her — emails only notify you that a reply is waiting.
This is the part most men tell us they didn't know they needed until they had it: a specialist who answers their actual question, in writing, in their own time, without the cost or scheduling friction of another appointment.
Clinical-Grade Supplements at 10% Off
Direct access to Dr. Leila's clinical Fullscript dispensary at 10% off retail, with free shipping on orders over $50. A five-supplement clinical foundation everyone takes, plus up to six supportive supplements matched to your specific driver. Dosed to the protocol phase.
The Fertility Plate meal plan + scored recipes
A 7-day fertility-optimized meal plan with every recipe scored for glycemic load and anti-inflammatory rating. Generate the week’s shopping list with one tap, sized to your household. Every meal is built around the antioxidants, omega-3s, and zinc your sperm is using during regeneration.
Every Recommendation, With Its Source
Each input in the protocol — supplements, sleep targets, heat exposure thresholds, nutrition guidance — is tied to the published research that supports it. The full clinical reference library lives inside your portal, with study links, summary findings, and dose justifications. You see why every recommendation is in the protocol, not just what to do.
STEP 3 — RETEST
Verify the change. Inside the window where it matters.
The 90-day spermatogenesis cycle gives you a built-in checkpoint. By Day 90, the sperm being released has been through one full development cycle under the protocol. A post-protocol DFI retest tells you whether the work moved the number — before your next IVF cycle, IUI, or attempt at natural conception.
What's included
- ●A Day-90 retest milestone built into your portal, so the timing aligns with the spermatogenesis cycle.
- ●Guidance on which DFI tests to consider and how to share before-and-after results with your RE.
- ●A space inside the portal to log your baseline and post-protocol numbers — so the change is in writing, not memory.
Completion guarantee
Finish the 90 days. Retest. If your DFI hasn't moved, your follow-up consultation with Dr. Leila is on the house. You'll review what was missed, what to extend, and what your next move looks like.
What this costs — compared to what it replaces.
Option
Another IVF cycle — a retrieval attempt, no root cause addressed
Cost:$15,000 to $25,000
Option
Pre-IVF coaching package — sessions with a non-clinician fertility coach
Cost:$1,500 to $3,500
Option
Functional medicine MD (90 days) — async messaging, not fertility-specific
Cost:$1,500 to $3,500
Option
6–8 visits with a fertility clinician — episodic appointments, no daily protocol
Cost:$1,200 to $3,200
Option
DFI test alone — a number, no protocol, no plan, no follow-up
Cost:$570
Option
One reproductive urologist consult — one visit, one perspective
Cost:$400 to $800
Option
90 days with Dr. Leila — full clinical engagement, 1:1 messaging, the adaptive portal, and the completion guarantee
Cost:$1,500
| Option | Cost |
|---|---|
| Another IVF cycle — a retrieval attempt, no root cause addressed | $15,000 to $25,000 |
| Pre-IVF coaching package — sessions with a non-clinician fertility coach | $1,500 to $3,500 |
| Functional medicine MD (90 days) — async messaging, not fertility-specific | $1,500 to $3,500 |
| 6–8 visits with a fertility clinician — episodic appointments, no daily protocol | $1,200 to $3,200 |
| DFI test alone — a number, no protocol, no plan, no follow-up | $570 |
| One reproductive urologist consult — one visit, one perspective | $400 to $800 |
| 90 days with Dr. Leila — full clinical engagement, 1:1 messaging, the adaptive portal, and the completion guarantee | $1,500 |
At $1,500, this isn’t the cheapest option — it’s the only one that combines a doctor’s 90-day clinical engagement, the personalized plan, and the daily portal at any price. About 6% of one IVF cycle. Less than three fertility clinician visits.
$1,500 · One-time payment · 90 days of full access · 1:1 messaging included
Start with the free 3-minute assessment — no email required. Extend later for $500 per 30 days if you need more time.
Backed by the completion guarantee: finish the 90 days and retest — if your DFI hasn't moved, your follow-up consultation with Dr. Leila is on the house.
Built on published research.
Embryo failure is multifactorial. This program addresses one contributing factor — the sperm side — within the 90-day window where it can actually be changed. Here’s the science.
Why the 90-day window is biology, not arbitrary.
Sperm cells take 74 days to develop through spermatogenesis, plus another 10–14 days of transit through the epididymis. The sperm in your sample today reflects choices made about three months ago. The sperm used in your next cycle is being built right now.
Mrlak and colleagues, 2023
High sperm DNA fragmentation is associated with arrested embryo development, reduced blastulation rates, and lower clinical pregnancy rates — even when oocyte quality is good.
JBRA Assisted Reproduction
Oleszczuk and colleagues
From a DFI of 20%, there is increased risk of embryos with inferior quality. At DFI above 30%, blastocyst formation rates are significantly reduced.
Cited in Mrlak review, 2023
Meseguer and colleagues, 2011
In 210 couples undergoing IVF and ICSI, a 10% rise in DFI was associated with a 1.3% increase in failure to conceive.
Fertility and Sterility
Randomised double-blind trial, 2024
A three-month antioxidant protocol significantly reduced DFI in patients with initial fragmentation at or above 20% — inside the 90-day window before the next cycle.
Double-blind RCT · 263 patients
This is the variable inside your control window. The 90 days before your next cycle is when this changes.
About Dr. Leila Fazlicic, D.Ac., L.Ac.
Dr. Leila Fazlicic has 15 years of clinical fertility practice. She built the Sperm DNA Window™ after one observation she kept seeing in her clinic: the sperm contribution to failed cycles is real, measurable, and addressable — and most couples reach their third or fourth cycle without anyone ever testing it.
- ●Top Doctor, Findatopdoc.com, 2024
- ●15 years of clinical experience in fertility optimization
- ●Specialization in male fertility and DNA fragmentation
- ●Based in Park Ridge, Illinois — telehealth nationwide
- ●Coordinated alongside your medical care, not a replacement
Patient results are private by design
We don’t ask patients to perform.
No video testimonials. No “success story” interviews. No before-and-after couples on Instagram. The men who do this work are not looking to be content. What we anchor every recommendation to is the biology — the 74–90 day spermatogenesis cycle, and the published research showing that DFI improves measurably when antioxidant and lifestyle protocols are sustained across a full cycle.
What the research shows
74–90 days
full sperm regeneration cycle
The biological window the protocol is built around (Heller and Clermont, Science, 1963).
Modifiable
lifestyle & environmental drivers
When the underlying causes are lifestyle-driven, DFI is one of the most modifiable variables in male fertility.
Structured
intervention across one cycle
Published research supports measurable improvement when antioxidant protocols are sustained across a full cycle (randomised trial, 263 patients, 2024).
Patient outcomes are not displayed publicly. They’re between Dr. Leila and the men she works with.
Who the protocol is built for.
Right time if:
- ●You and your partner are trying to conceive — naturally, with IUI, or with IVF
- ●You are preparing for a specific upcoming cycle
- ●A previous cycle did not lead to a live birth, or trying naturally has not worked yet
- ●A semen analysis was normal but something still feels unexplained
- ●A semen analysis was abnormal and you want a structured 90-day plan
- ●You want to optimize sperm quality before starting to try
- ●You have 60 to 90 days before your next attempt
- ●You want practical, evidence-informed action
Not right if:
- ●You have not completed a basic fertility workup
- ●You are looking for a guaranteed result
- ●You want a single-supplement fix
- ●You need a medical diagnosis instead of clinical lifestyle intervention
- ●You are not ready for consistent daily action across 90 days
Explore the protocol
Everything you need to decide your next 90 days
Start with the free assessment, read the clinical guides, or meet the doctor behind the protocol.
See What’s Affecting Your Sperm DNA
Identify your primary driver and get a personalized 3-step action plan. No email required to start.
Sperm DNA Fragmentation
The full clinical guide: what DFI is, why a standard semen analysis misses it, thresholds, and how to lower it.
Pre-IVF Optimization Protocol
The 90-day male-side protocol to run before your next IVF or IUI cycle — sequenced to the spermatogenesis window.
When to Start
Enter your retrieval or transfer date and get the exact day to start so the full 90-day window lands before your cycle.
About Dr. Leila Fazlicic
D.Ac., L.Ac., Top Doctor 2024 — 15 years of clinical fertility practice. Meet the doctor who built the protocol.
The 90 days before your cycle is the only window to transform your sperm.
Sperm built today is the sperm used in your next cycle. The biology doesn’t wait.
$1,500 · One-time · full 90-day access · 1:1 messaging included. The free 3-minute assessment is his first step — no email required to start.
Found this for your partner? The assessment is free, private, and takes him three minutes.
The assessment is a clinical evaluation of lifestyle and environmental drivers that published research links to sperm DNA quality. It is delivered within the scope of integrative fertility practice and is not a medical diagnosis. The Sperm DNA Window is a clinical protocol delivered by Dr. Leila Fazlicic, D.Ac., L.Ac., addressing lifestyle, nutritional, and environmental factors across the 90-day sperm development window. The protocol is coordinated alongside your medical care and does not replace it. Sperm regenerates every 90 days — outcomes depend on consistent daily action across the full window. Individual results vary.
Created by Dr. Leila Fazlicic, D.Ac., L.Ac. Park Ridge, Illinois. Telehealth nationwide.