4.9/5 from 10,000+ reviews
4.9/5 from 10,000+ reviews
4.9/5 from 10,000+ reviews
The Mood Swings, the Cycle That's Never the Same Length Twice, the Energy That Comes and Goes — What If None of It Was Random?
Updated August 2026
Your mood shifts for no reason. Your cycle runs 26 days one month, 34 the next. Some weeks you have energy for everything; other weeks the same workout feels impossible.
It isn't random — it's hormonal, and it follows a pattern. Almost nobody ever gets to actually see that pattern, not from an app, a single test, or even most doctor visits. Here's what changes when you can.
It's Hormonal. You've Just Never Been Able to See It.
Most of us reach for a period-tracking app to guess at what's coming, or wait until something feels off enough to ask a doctor for a one-time hormone test. A calendar app can only estimate based on past cycles. A single test can only catch one hormone, on one day. Four hormones — LH, E3G (estrogen metabolite), PdG (progesterone metabolite), and FSH — actually rise and fall together, all cycle long, and most people have never had an easy way to see that fuller picture.
So the mood swings, the shifting cycle length, the on-and-off energy — they've had a hormonal reason the whole time. You just haven't had a way to watch it happen in real time instead of guessing after the fact.
Ready to See Your Own Pattern?
See the Pattern Behind How You Feel
Ultra4 tracks LH, E3G, PdG, and FSH together so your mood, energy, and cycle finally make sense. Mira reads all four hormones from a single wand, using fluorescent detection technology, the same category used in lab settings. Here's what that actually gives you:
See your unique ovulation patterns
Sometimes, LH surges more than once — and not every surge leads to ovulation. Ultra4 tracks LH, E3G, PdG, and FSH so you can better understand your ovulation patterns beyond a single hormone.
Connect symptoms to hormones
Track how you feel in the Mira app and see symptoms like fatigue, skin changes, and mood shifts beside your hormone data. Notice whether your energy and mood typically improve as E3G rises, and how they change with PdG increases.
Understand each cycle
From the outside, an anovulatory cycle can look just like any other. With Ultra4, track FSH for follicle development, LH and E3G for ovulation, and PdG to confirm it. Understand your hormone patterns and how each cycle unfolds.
Plan with your cycle — not against it
Hormones naturally shift across your cycle, influencing your energy, recovery, and how you feel day to day. Ultra4 helps you see where you are, so you can work with cyclical changes in LH, E3G, PdG, and FSH — not against them.
Build a hormone baseline
Ultra4 tracks LH, E3G, PdG, and FSH throughout your cycle. Over time, see how each phase — from rising E3G before ovulation to PdG afterward — connects to your energy, mood, sleep, and ovulation.
Share real data with your doctor
Take a proactive approach to your health with a report that shows cycle patterns from your real data. Ultra4 helps you track patterns over time and share them with your provider for more informed conversations.
These are example charts from the Mira App, shown for illustration purposes only.
Mira analyzes how your hormones move in relation to each other, not just their individual numbers. Watched on their own, each hormone tells you one moment. Watched together, they show the full arc of a cycle — before, during, and after ovulation, including the shifts that tend to line up with mood and energy changes.
It uses fluorescent detection technology, the same category used in lab settings, to read hormone concentrations directly rather than a line getting darker or lighter. Each wand's built-in calibration chip keeps results consistent test after test, up to 99.5% accuracy in hormone detection for LH and PdG¹.
Mira Core™ then turns those four levels into something you can actually use — what's changed since your last cycle, what it might mean, and personalized recommendations for sleep, nutrition, movement, and daily habits based on your own hormone patterns.
“From a single wand, Mira measures your hormones levels as real numbers, using the same type of fluorescent detection technology found in lab settings.”
Taylor S.
FDA-registered
FSA/HSA accepted
Clinically Validated*
Up to 99.5% detection accuracy for LH and PdG¹
There's a Way to See Your Hormone Pattern
One wand, four hormones, every morning.
Built for Every Stage — Not Just Trying to Conceive
Most hormone-tracking tools exist for one goal: finding a fertile window. That's little help for the years on either side of it — an irregular cycle, a postpartum body, or the start of perimenopause.
LH, E3G, PdG, and FSH matter whether your cycle is textbook-regular, complicated by PMOS (PCOS), or shifting toward menopause. One system that reads all four works across that whole timeline.
"Mira has taken a lot of the guesswork out of figuring out my pretty irregular PCOS cycle. I'm grateful that it exists especially as someone with imbalanced hormones. It's provided really important and key understandings around how my body and cycle works over a few months, which would just not be possible otherwise."
Greta I.
"I started using the Mira Ultra4 Kit about 15 months postpartum, when my cycles were a bit irregular... I also wanted deeper insight into my cycle in this new season of life—especially since I just turned 40 and am paying closer attention to where I might be in my perimenopause transition. Mira has allowed me to do all of that."
Kristen G.
Mira Ultra4™ is intended for hormone monitoring and cycle tracking, not diagnosis of PMOS (PCOS), perimenopause, or any other condition — but it can show you patterns worth bringing to a specialist, at whatever stage you're in.
Over 10,000+ 4.9/5-Star Reviews
Mira Hormone Monitor: Ultra4 Kit
One monitor, wands, and a real understanding of your own hormone patterns. Track LH, E3G, PdG, and FSH from a single wand, every morning, in about 16 minutes.
Tracks 4 key hormones (LH, E3G estrogen metabolite, PdG progesterone metabolite, and FSH) in one kit
Lab-grade fluorescent detection technology
Results at home, in minutes — no blood draw
FSA/HSA eligible
1-year manufacturer warranty + 20-day return window
Select Wand Quantity
Average cycle pack
Longer cycle pack
FSA/HSA eligible
Free shipping on orders over $169
Help me choose
20-Day Return Window
Unopened, unused product, per Mira's Cancellation, Refund & Warranty Policy.
1-Year Manufacturer Warranty
Covers manufacturing defects on the Mira Monitor.
FSA/HSA Eligible
Use pre-tax dollars toward your Ultra4™ Kit.
See Mira In Action
First urine of the day, one wand, results in about 16 minutes.
From Random Symptoms to a Pattern You Can Use
Once you see your actual hormone curve, the rest starts to make sense — the exhaustion, the hard workouts, the skin that flares on schedule. It's hormonal, and it's readable.
Tracking tells you a date. Understanding tells you why today feels different from last Tuesday, and what to expect next week.
"I'm an engineer by day, so naturally I love data and charts. I love that you get precise measurements of the hormones, and seeing how they compare to what's 'normal.'"
Carissa H.
"Mira has been helping me understand my super irregular cycles. I can see the fluctuations in all 4 hormones and can better choose interventions and lifestyle changes to help accordingly."
Kylie B.
Data You Can Actually Bring to a Doctor
Getting a full hormone panel through a doctor usually means a referral and testing timed to a specific point in your cycle. Miss that window and you wait for the next one, living with the symptoms in the meantime. Real hormone data changes that conversation: instead of "something feels off," you walk in with weeks of your own numbers.
"Mira has been helpful in showing clear hormone patterns over time, making it easier to connect symptoms to specific points in my cycle instead of guessing... it's also helped me keep more accurate records and have more informed conversations with my healthcare providers."
Danielle L.
"It gives me confidence when talking to my doctor because I have data to back up my symptoms."
Hazel H.
This doesn't replace a doctor, it's a way to have more informed conversations with your provider
What You're Actually Comparing
Hormones read
Result type
Relevant beyond TTC
Data to bring to a doctor
Mira Ultra4™ Kit
LH, E3G, PdG, FSH — together
Real numeric values over time and easy to read personalized insights
Every reproductive life stage
Doctor-friendly report
Single-Hormone Ovulation Strip
LH only
Yes/no line
Not by design
Limited
One-Time Doctor's Hormone Panel
Usually 1, on that visit
A single lab number
Depends on the visit
It's already theirs
Questions, answered
No more guessing — here's exactly how Mira works.
Is this only for people trying to conceive?
No — just as often used for general hormone health, irregular cycles, postpartum, PMOS (PCOS) awareness, and perimenopause.
Do I have to test every single day?
Once daily, first thing in the morning, using the first urine of the day.
How long before I actually see a pattern?
Most reviewers describe a clearer picture within their first one to two cycles.
Can Mira tell me if I have PCOS?
No. Mira Ultra4™ tracks hormone patterns, not diagnoses — but you can bring those patterns to a doctor.
It Was Never Random. Now You Can Actually See It.
Mira Ultra4™ is how you finally watch the pattern instead of guessing at it after the fact.
Mira Hormone Monitor and Ultra4™ Wands are intended for hormone monitoring and cycle tracking. Results are not intended to diagnose, screen for, or indicate PCOS, ovarian function, or any other medical condition. Mira does not diagnose, treat, cure, or prevent any disease. Consult a doctor for all medical decisions.
*Based on the first in over 25 years STARD-compliant, blinded validation of a quantitative multi-hormone monitor against 890 ultrasound scans.
¹ Up to 99.5% detection accuracy for LH and PdG, based on internal laboratory testing under controlled conditions using known hormone concentrations. Reflects analytical performance (true positive and true negative classification), not clinical or real-world accuracy. Individual results may vary. Mira is not a diagnostic device.
Free shipping applies to orders over $169 within eligible regions. Returns must be requested within 20 days of delivery per Mira's Cancellation, Refund & Warranty Policy. Warranty covers manufacturing defects only; see full policy for exclusions.
© 2026 Mira. Mira Ultra4™ and Mira Core™ are trademarks of Mira.