Estradiol, FSH & LH
Key reproductive hormones that shift through your cycle and life - useful around cycle changes, perimenopause and fertility questions.
TypeBlood test
HowBlood draw, often on day 2–5 of your cycle.
How oftenWhen symptoms or questions arise.
BeforeNote the day of your cycle; hormonal contraception affects results.
WhoWomen with irregular cycles, perimenopause symptoms or fertility questions.
Why timing changes everything
These hormones rise and fall throughout your cycle. The same number can be normal on one day and abnormal on another.
Early cycle
“When should I test?”
Day 2–5 gives a baseline for FSH, LH and estradiol.
Timing
Perimenopause
“Can a test confirm it?”
Hormones swing widely - symptoms and age often tell more than one result.
Symptoms matter most
Fertility
“What about my egg reserve?”
FSH and AMH help, but don’t predict natural fertility on their own.
One piece of the puzzle
Is it right for you?
Worth considering if…
- Your periods have become irregular or stopped.
- You have hot flashes, sleep changes or mood shifts in your 40s.
- You’re exploring fertility.
A better option if…
- You’re over 45 with classic symptoms - perimenopause is usually diagnosed without tests.
- You want egg reserve - see AMH.
How it’s measured
Estradiol
The main estrogen.
FSH & LH
Signals from the brain to the ovaries.
Progesterone (day 21)
Confirms ovulation.
The full picture
What is it?
Blood tests for the main female reproductive hormones.
What type of test is it?
A blood biomarker panel.
What does it measure?
Estradiol, FSH and LH levels.
Why might someone consider it?
To investigate cycle changes, perimenopause and fertility.
Who is it most relevant for?
Women with relevant symptoms or questions.
How is it performed?
A blood draw timed to your cycle.
How often might it be considered?
When needed.
What can the result help you understand?
Where you may be in your cycle or reproductive stage.
What are its limitations?
Levels change daily; contraception affects results.
What should it be viewed with?
Symptoms, AMH, thyroid and prolactin.
Where to get it
Through your provider
The simplest route - often covered when there’s a clear reason.
Lab services
e.g. Quest Diagnostics, Labcorp.
Direct-to-consumer panels
e.g. Function Health, InsideTracker.
Names are examples only, not endorsements. Your provider can often order the same test - and help interpret it.
Connected to
Questions to ask your provider
- Which day of my cycle should I test?
- Do I need tests to confirm perimenopause?
Ziva Health
One test is a snapshot. Ziva shows the whole story.
Ziva brings your lab results, wearables and daily readings together - and Isabella tells you what’s changing and what to ask your provider next.
Refer Ziva to my provider / care team
Is your provider not on Ziva yet? Send them a link in under a minute - once they join, they’ll see your Estradiol, FSH & LH result alongside your other trends and get alerts directly.
Refer my providerAlready seeing your provider?
Bring your Ziva 30-day report to your next appointment - your Estradiol, FSH & LH result and daily trends in one view, so the conversation starts with the full picture.
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Being listed doesn’t mean everyone needs this test. Educational only — not medical advice. Results should be interpreted with a qualified clinician. ← Back to Know What to Test