Mira Fertility Tracker: A Functional Nutritionist’s Honest Review
If you've measured your hormones before, chances are you've done it through blood testing or, if you've taken a more comprehensive approach, perhaps you've tried the DUTCH test. Or maybe you’ve never tested your hormones, and you’re realizing now is the time!
I frequently use both of these tests in my practice to assess my clients' hormone health. However, there's one significant limitation:
Both tests provide only a single-day snapshot of your cycle.
This is helpful but not always enough—especially if you have irregular cycles or are trying to pinpoint hormonal patterns over time.
That’s where Mira comes in—my new favorite fertility tracking tool.
What Is Mira?
Mira is a fertility tracking device that measures key hormone levels in urine, including:
E3G (a urine metabolite of estrogen)
PDG (a urine metabolite of progesterone)
LH (luteinizing hormone)
FSH (follicle-stimulating hormone)
Research has shown that these urine metabolites correlate well with blood (serum) hormone levels, making Mira a reliable way to track your hormones at home throughout your entire cycle.
Why I Started Using Mira
The DUTCH test is fantastic for in-depth hormone insights, and I often recommend it. However, even with cycle mapping, it is expensive and still only provides limited data points.
I often work with clients with irregular cycles and short luteal phases, so seeing what their hormones are doing throughout their cycle can be incredibly insightful. Hint - your period tracking app may tell you everything is normal, but that may not be the case!
And the best part? Watching their hormones improve as we do the work!
Who Can Benefit from Using Mira?
Mira is an excellent tool for those who:
Have PCOS
Experience irregular cycles
Want to pinpoint their fertile window
Have a short luteal phase or luteal phase defect
Struggle with low progesterone
Are navigating infertility challenges
Are in perimenopause and want deeper hormone insights
What Does Mira Tell You?
Tracks LH, PdG (progesterone metabolite), E3G (estrogen metabolite), and FSH levels
Identifies and confirms ovulation
Detects your six most fertile days
Provides numerical hormone data in an easy-to-read format
Testing Options from Mira
Max Kit - tests 3 hormones (LH, E3G, PdG)
Clarity Kit - tests 4 hormones (LH, E3G, PdG, FSH)
Basic Kit - tests 2 hormones (LH and E3G)
My personal recommendation is to go with the Max Kit unless you suspect perimenopause or if you are struggling to conceive after 35.
My Personal Experience with hormone testing & Mira
Over the past few months, my daughter and I have been on a breastfeeding weaning journey, and my menstrual cycle took its time to regulate.
Around 15 months postpartum, my period finally returned. This timing made sense, considering I was still breastfeeding overnight until my daughter turned one. However, my first few cycles were short—especially my luteal phase, likely due to lingering hormonal shifts from breastfeeding.
Eventually my cycles regulated and my luteal phases lengthened. And even though I was seeing healthy levels of cervical mucus and my BBT was rising sufficiently, I wanted a deeper look at my hormones.
I decided to test with:
DUTCH test, which unfortunately landed on an off-cycle due to illness, however I gleaned important insights about my cortisol and glutathione levels.
Mira Max Kit, which allowed me to track the next cycle more accurately and gain insight into my estrogen and progesterone levels.
What I Learned from mira
I ovulate on day 15 of my cycle (I knew this due to cervical mucus and BBT but it was reassuring to confirm this)
My luteal phase is about 13 days which is ideal (as we are looking to start to try to get pregnant in the next few months)
My progesterone was slightly lower than I would like it to be. I am going to really dial in on my progesterone supporting practices to see how the next few cycles pan out. I will write a whole blog post about this next week.
Using Mira became part of my morning routine fairly easily
Mira: Pros & Cons
Pros
Easy to learn and use
Portable, with a travel-friendly carrying case
Syncs to an easy-to-use app
Provides detailed hormone tracking and charting
Even one month of tracking can provide valuable insights
Cons
A bit pricey, though you can reduce costs by testing every other day. Plus in some cases you can probably learn a lot in just 1-2 cycles. If you have irregular cycles you may need to test for longer.
It can be stressful if you're prone to overanalyzing your health; in this case, I suggest limiting use to one to two months max
Want to Try Mira? (Special Discount for My Clients)
If you're interested in using Mira, my clients receive 20% off kits and 30% off wands with a subscription.
Let’s chat! Book a free Fertility Insights Call here.
