Sperm DNA Window™
The next IVF cycle cannot use sperm that does not exist yet.
A 3-month clinical protocol for the man preparing for IVF — personalized to his biggest bottleneck, with unlimited messages to Dr. Leila Fazlicic and replies within 72 hours, for the full 90 days.
Seven lifestyle drivers are linked to sperm DNA fragmentation. Most men have at least one.
3-minute check · Private · No email required
You can do it for him
Built and supported by Dr. Leila Fazlicic, D.Ac., L.Ac. — 15+ years in pre-IVF optimization and sperm DNA integrity.
The 90-day sperm window most fertility clinics don’t explain.
You came home from the clinic with “we don’t know what happened — try again.” You’ve been the one researching at midnight, holding the calendar, holding both of you together. He wants to help and isn’t sure how.
Here is the variable most clinics don’t put in front of you: 30–40% of failed IVF cycles involve sperm DNA fragmentation1 — a marker that isn’t on a standard semen analysis. You have to request it by name (SCSA, SCD, TUNEL, or Halosperm).
And the part that decides the next cycle: sperm is built fresh across a 74–90 day biological window. Whatever inputs his body gets during that window are what shows up at retrieval. The next cycle cannot use sperm that does not exist yet. The 90 days starting now are the ones that decide it.
This page is for him. It’s also for you, because you’ll likely be the one to send it to him.
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.
1 Simon L et al., Asian Journal of Andrology (2017); Robinson L et al., Human Reproduction (2012).
Watch: Dr. Leila on why DFI is the variable most clinics miss
What’s inside the Sperm DNA Window™.
The Sperm DNA Window™ is a clinical protocol delivered through a personalized portal — not a PDF library you finish alone. For 90 days, he gets:
- Unlimited direct messages to Dr. Leila through the portal — replies within 72 hours, for the full 90 days
- A personalized daily structure built around the bottleneck identified in your assessment
- Mid-protocol DFI re-test review at week 6 — Dr. Leila reads it and adjusts
- The full framework — three mechanisms (oxidative stress, inflammation, hormonal imbalance) and the seven everyday drivers behind them — with recipe and supplement guidance
- Daily tracking with 8pm reminders so consistency compounds
Personal, clinical, supported — done at his pace, with Dr. Leila in the loop the whole time.
The four things you need to get right before the next cycle.
If even one of these is missing, the 90 days don’t do what they could. The protocol delivers all four.
Know your personal bottleneck
Every man's biology is different. Generic advice misses the one driver actually damaging your sperm. The free 3-minute assessment identifies your top bottleneck across the seven everyday drivers behind sperm DNA damage — heat, sleep, nutrition, stress, smoking, alcohol, and toxins.
Know when to start
The 90-day window has to line up with your retrieval date, not the other way around. The Start Date Calculator gives you the exact day to begin, counting backward from your cycle.
Get a daily plan
Not a research project. What to do today, not next week. The portal delivers a personalized daily structure with 8pm reminders so consistency compounds across the full 90 days.
Get clinician support
Questions don't arrive on a schedule. Unlimited direct messages to Dr. Leila through the portal for the full 90 days — she replies within 72 hours, for the specific questions only you have about your situation.
When should he start the Sperm DNA Window™?
Enter your retrieval or cycle date and the calculator returns the exact day to begin — counting backward through the full spermatogenesis window.
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? support@90daysperm.com
How the Sperm DNA Window™ compares to other pre-IVF options.
vs. doing nothing for 90 days
The clinic runs the cycle. The biology before retrieval is on you. Doing nothing lets whatever's happening continue happening — into the next sample.
vs. a single supplement
CoQ10 alone won't move DFI. Neither will L-carnitine. Sperm DNA damage runs through three mechanisms working in parallel — a supplement is the umbrella, not the reason it stops raining.
vs. a generic fertility course
Generic content gives advice. The Sperm DNA Window™ identifies your bottleneck, gives daily clarity, and lets you message Dr. Leila when you need a specific answer.
The 3 phases of the Sperm DNA Window™.
Days 1–30
Baseline
Sustainable structure: sleep, nutrition, removing the biggest disruptors. Not 'quit everything' — restrictive overhauls raise cortisol and damage sperm. Aim for 70–80% consistency.
Days 31–60
Build
Cumulative habits start producing the protective environment new sperm needs. Targeted exercise, supplement protocols dialed in, stress recovery anchored. The forming batch is now in a measurably different biology than Day 1.
Days 61–90
Optimize and re-test
Personalized adjustments based on his progress. Mid-protocol DFI re-test reviewed by Dr. Leila. Final-stretch preparation for retrieval week.
Sperm DFI thresholds: what your number means.
If he’s already had a DFI test, the number is either acceptable, high-risk, or critical. Most men don’t know which.
Optimal
Standard pre-conception preparation.
High risk
Failed implantation, fertilization issues, early loss. Structured intervention recommended.
Critical
Antioxidant protocol indicated. Re-test before the next cycle.
If he hasn’t tested DFI, that’s step one — and most clinics won’t run it unless you ask by name. The DFI testing guide covers which assay to request and how to interpret the result.
Unlimited messages to Dr. Leila, replies within 72 hours.
Every other $1,500 fertility resource gives you content and walks away. This one doesn’t.
Through the portal, he can message Dr. Leila as often as he needs for the full 90 days — no cap on how many questions, with a reply typically within 72 hours. Questions about his DFI results, which supplement to take with which meal, how to adjust around travel or work stress, how his timeline fits with yours — he asks, she answers personally.
That’s what makes this supported transformation and not just a course. The structure handles 90% of what he’ll need; Dr. Leila handles the 10% that’s specific to him.
Who the Sperm DNA Window™ is for.
Built for the man who…
- Has 60+ days before the next IVF cycle (or any conception attempt)
- Has had a failed IVF cycle and wants to address the variable that wasn't tested
- Wants daily structure instead of a research project
- Wants clinician access without a high coaching commitment
- Has a partner doing parallel work on her side of the biology
Not the right fit if…
- Anyone in the 14 days before retrieval — the biological window is too short, a different protocol applies
- Anyone looking for a guaranteed outcome — no protocol can promise that
- Couples who want both partners working together in coordinated 1:1 coaching — that's a separate couples optimization program inside the portal
What the Sperm DNA Window™ is not.
- Medical advice — it's clinical lifestyle intervention
- A substitute for your reproductive endocrinologist or urologist
- A guarantee of pregnancy or specific test outcomes
- A community or group program — every message stays between you and Dr. Leila
Privacy is the protocol’s first principle. Many couples haven’t told family or friends they’re doing IVF — everything stays between you and Dr. Leila.
Sperm DNA Window™
12 weeks of structured clinical support, built around the biology of how sperm is made.
What’s included
- 1
Your biological trigger map
A structured assessment that identifies the specific oxidative, inflammatory, hormonal, and environmental triggers contributing to sperm DNA fragmentation in your case. Not a generic checklist — a personalized read on what’s actually driving the load in your biology.
- 2
Your 12-week clinical plan
A 12-week plan built around your specific triggers, with daily habit tracking that creates compound effect across the cycle. Different lifestyle inputs can activate the same protective biological response — which means you choose the levers that fit your life, and consistency does the work. Designed to run at 70–80% consistency, not perfection.
- 3
Unlimited clinician messaging
Direct messaging with Dr. Leila Fazlicic, D.Ac., L.Ac. for all questions relevant to your protocol across the full 12 weeks. Ask as often as you need. Replies within 72 hours, Monday to Friday.
Investment
$1,500
Covers the full 12-week protocol and unlimited clinician access across the cycle.
Completion guarantee
Complete the 12 weeks, retest your DNA fragmentation, and if your DFI hasn’t improved, your follow-up consultation with Dr. Fazlicic is included at no charge.
What this is not
This is not a course. Not a supplement bundle. Not a coaching program. It’s a structured clinical protocol with direct access to a clinician during the only window where sperm biology is open — the 74–90 days before your next cycle.
Built by Dr. Leila Fazlicic, D.Ac., L.Ac. — Top Doctor 2024. 15 years in clinical fertility practice.
Sperm DNA Window™ — frequently asked questions.
Seven lifestyle drivers are linked to sperm DNA fragmentation. Most men have at least one.
The 90 days starting now are the only 90 days you have for this cycle. The sperm released at retrieval is being built right now, in whatever environment his body is providing today.
You don’t have to figure it out alone. You don’t have to assemble the protocol from 50 articles. You don’t have to wonder whether the supplements are doing anything.
For $1,500 and 90 days of consistent inputs, he gets a structured, personalized protocol — and Dr. Leila in his corner the whole time.
3-minute check · Private · No email required
You can do it for him