One in six couples worldwide faces difficulty getting pregnant.
For many women, the first question is the hardest one to ask: is something wrong with me?
The answer is rarely that simple. Fertility is not a fixed state. It is a combination of hormonal balance, ovarian function, and timing. And all of it can be measured.
Female fertility testing does not just identify problems. It tells you where you are, what your options look like, and how to move forward, whether you are trying to conceive right now or planning for the future.
This guide breaks down the five key fertility tests, what each one means, and why they matter.
The Scale of the Problem
Infertility is more common than most people realize.
The World Health Organization estimates that approximately 17.5% of adults globally experience infertility at some point in their lifetime.
In India, studies published in the Journal of Human Reproductive Sciences suggest that the prevalence of infertility ranges from 3.9% to 16.8% depending on the region, with many cases going undiagnosed due to stigma and lack of access to testing.
Female factors contribute to about 40 to 50% of infertility cases. Another 30 to 40% involve a combination of both male and female factors.
This means that for a large proportion of couples struggling to conceive, the answers are findable through basic hormonal testing.
What Is a Fertility Workup?
A fertility workup is a set of hormone blood tests that assess how well your reproductive system is functioning.
For women, this typically involves testing five key hormones: AMH, FSH, LH, Estradiol, and Prolactin.
These tests are done through a simple blood draw, usually on specific days of your menstrual cycle for maximum accuracy.
No injections. No imaging required at this stage. Just blood tests that paint a detailed picture of your reproductive health.
Understanding Each Fertility Test
1. AMH (Anti-Mullerian Hormone)
AMH is produced by the small follicles in your ovaries, the ones that hold your eggs.
It is the most direct measure of your ovarian reserve, which simply means how many eggs you have left.
Unlike other hormone tests, AMH can be tested on any day of your cycle. It does not fluctuate significantly day to day, which makes it one of the most reliable fertility markers available.
A higher AMH generally means a larger egg reserve. A lower AMH may indicate a diminished reserve, which becomes more relevant if you are considering IVF or planning to delay pregnancy.
AMH also declines naturally with age. Testing it in your late 20s or early 30s gives you a useful baseline and more time to make informed decisions.
What it indicates: Ovarian reserve, egg supply, response to IVF stimulation
2. FSH (Follicle-Stimulating Hormone)
FSH is produced by the pituitary gland in your brain.
Its job is to stimulate your ovaries to produce a mature egg each cycle.
When your ovarian reserve is low, your brain compensates by pumping out more FSH to push the ovaries harder. This is why a high FSH level can be a sign that your ovarian reserve is declining.
FSH is most accurately measured on Day 2 or Day 3 of your menstrual cycle.
A normal FSH level is generally below 10 mIU/mL. Levels above 10 may indicate reduced ovarian reserve, while very high levels can suggest premature ovarian insufficiency.
What it indicates: Ovarian reserve status, pituitary-ovarian communication, early menopause risk
3. LH (Luteinizing Hormone)
LH is also produced by the pituitary gland.
Its primary role is to trigger ovulation. A sharp spike in LH mid-cycle signals the ovary to release a mature egg.
In a fertility workup, LH is measured alongside FSH on Day 2 or Day 3 to assess the FSH to LH ratio.
An elevated LH relative to FSH at baseline can be a marker for polycystic ovary syndrome (PCOS), one of the most common hormonal disorders in women of reproductive age. PCOS affects approximately 1 in 10 women globally according to WHO data.
What it indicates: Ovulation function, PCOS screening, LH surge timing, luteal phase evaluation
4. Estradiol (E2)
Estradiol is the primary form of estrogen produced by your ovaries.
At baseline (Day 2 or Day 3), estradiol should be at its lowest point in the cycle. If it is elevated on these days, it can suppress FSH levels and give a falsely normal reading, which is why interpreting FSH without estradiol is incomplete.
Elevated baseline estradiol can indicate a developing cyst, or early loss of follicular function.
During the follicular phase, estradiol rises as follicles develop. It peaks just before ovulation and then drops. Tracking these changes helps confirm whether ovulation is occurring normally.
What it indicates: Follicular development, FSH interpretation accuracy, ovarian function, estrogen-related conditions
5. Prolactin
Prolactin is a hormone mainly associated with breastfeeding. But in women who are not pregnant or nursing, elevated prolactin can interfere significantly with fertility.
High prolactin suppresses GnRH, the hormone that drives the entire reproductive cycle. This disrupts ovulation and can cause irregular or absent periods.
Elevated prolactin can result from a benign pituitary growth called a prolactinoma, thyroid dysfunction, certain medications, or chronic stress.
The good news is that hyperprolactinemia (high prolactin) is highly treatable once identified.
What it indicates: Ovulation disruption, irregular cycles, pituitary health, unexplained infertility
When Should You Get Fertility Testing Done?
If you are actively trying to conceive and have been unable to after 12 months of unprotected sex (or 6 months if you are above 35), a fertility workup is the right first step.
If you have irregular or absent periods, testing sooner rather than later helps identify the cause.
If you have been diagnosed with PCOS, endometriosis, or thyroid issues, fertility testing gives you a clearer picture of how these conditions may be affecting your reproductive hormones.
If you want to plan ahead, testing your AMH and FSH in your late 20s or early 30s gives you valuable information about your reproductive timeline, even if you are not trying to conceive right now.
Fertility awareness is not just for people struggling with infertility. It is useful for any woman who wants to understand her own body.
How the Cycle Day Matters for Accuracy
Most fertility hormone tests are timed to specific days of your menstrual cycle.
Day 2 or Day 3 (counting from the first day of your period) is the standard window for FSH, LH, and Estradiol. This is when baseline hormone levels are at their most predictable and clinically meaningful.
AMH and Prolactin can be tested on any day of the cycle.
When you book with Cura, our team helps you plan your testing around your cycle so you get the most accurate results possible.
Recommended Tests
- FSH (Follicle-Stimulating Hormone) - Day 2 or 3
- LH (Luteinizing Hormone) - Day 2 or 3
- Estradiol (E2) - Day 2 or 3
- Prolactin - any day
What Happens After Your Results?
Getting your results back can feel overwhelming, especially if a value falls outside the reference range.
Here is what to keep in mind.
A single abnormal value does not confirm infertility. Hormones fluctuate. Context matters. Your doctor will look at the combination of all five values together, alongside your medical history and cycle regularity.
If your results suggest a specific issue such as low AMH, high FSH, or elevated prolactin, there are established treatment pathways for each.
Many women who get fertility testing done discover that their levels are normal and simply needed the reassurance that everything was working as expected.
Others find something that can be addressed early, before it becomes a larger obstacle.
Either way, knowing is better than not knowing.
Take the first step toward understanding your fertility.
Cura's Female Fertility Panel covers all five key hormones with accurate, lab-processed results and home sample collection.
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