When to Test Your Hormones After Stopping Hormonal Contraception

Whether you’ve just come off the pill, had your implant removed, stopped the contraceptive injection or had your IUD taken out, one of the most common questions is: when should I test my hormones after stopping contraception?

You might call it birth control or contraception, either way, the timing of hormone testing depends on the method you used and whether your natural cycle has returned.

Some forms of hormonal contraception suppress ovulation and temporarily affect the hormones involved in your menstrual cycle. Test too soon, and your results may not reflect your natural baseline. Test at the right time, and your hormone results can give you a much clearer picture of your reproductive health, ovarian reserve and cycle function.

Here’s exactly when to test your hormones after stopping contraception, broken down by type.

Quick facts:

• Different types of contraception affect your hormones in different ways. This means the best time to test depends on the method you used.
• For most hormonal contraception, we recommend waiting 3 full cycles before testing cycling hormones. This gives the most accurate results across all markers.
• The contraceptive injection, including Depo-Provera, is the main exception. It can affect your cycle for much longer. Periods may take up to 12 months or longer to return.
• The copper IUD contains no hormones. You can test your hormones immediately, before or after removal.
• Hertility can test AMH, thyroid hormones, androgens, SHBG and prolactin while you use hormonal contraception. However, hormonal contraception suppresses cycling hormones such as FSH, LH and oestradiol. For this reason, we cannot accurately assess these markers until your natural cycle has returned.
• For most hormonal contraception, Hertility recommends waiting until you have had 3 full menstrual cycles before testing cycling hormones such as FSH, LH and oestradiol. The main exception is the contraceptive injection, which can delay the return of periods and fertility for up to 12 months or longer. If you use a copper IUD, you can test your hormones at any point because it does not contain hormones.

Why timing matters when testing hormones after contraception

Hormonal contraception introduces synthetic hormones into your body. Depending on the type, it may suppress ovulation, change cervical mucus, thin the womb lining or affect the signals between your brain and ovaries.

Your cycle needs time to restart

This signalling system is called the hypothalamic-pituitary-ovarian axis, or HPO axis. It controls the hormones involved in ovulation and menstrual cycles, including FSH, LH and oestradiol.

When you stop hormonal contraception, your body needs time to clear the synthetic hormones. Your natural hormonal rhythm also needs time to restart. Some people get their period back within a few weeks. Others need several months before their cycles become regular again.

Testing too soon can affect your results

If you test cycling hormones too soon, your results may not show your natural baseline. FSH, LH and oestradiol may still look suppressed. Your cycle may also be too unpredictable to time the test correctly.

This can make results harder to interpret. You may see results that look abnormal, even though your body is simply adjusting after contraception. You may also get results that seem reassuring but do not show the full picture. Getting the timing right makes your hormone test more accurate and more useful.

How does hormonal contraception affect hormone test results?

Different hormones respond to contraception in different ways. You can test some markers while you still use contraception. Others need a natural cycle to return first.

Cycling hormones (FSH, LH, oestradiol) FSH, LH and oestradiol are cycling hormones. They rise and fall across the menstrual cycle and are closely linked to ovulation.

Hormonal contraception can suppress the brain-ovary signals that control these hormones. This happens most clearly with combined hormonal contraception, such as the combined pill, patch and ring.

If you test FSH, LH and oestradiol while using hormonal contraception, the results usually show the effect of contraception. They do not show your natural cycle. This is why Hertility recommends waiting until you have had 3 full cycles before testing these markers.

AMH or anti-Müllerian hormone, gives information about ovarian reserve. It is not a cycling hormone. This means you can test AMH at any point in your cycle, including while you use hormonal contraception.

However, research suggests hormonal contraception may lower AMH in people currently on it, with the effect more pronounced in long-term users. Importantly, AMH levels appear to rebound to true baseline within a few months of stopping. This means an AMH result on contraception can still be useful, but testing or retesting after 3 full cycles off hormonal contraception can give a more accurate baseline.

Androgens (testosterone and DHEAS) Hertility can test androgens, including testosterone and DHEAS, while you use hormonal contraception. However, your results need careful interpretation. The combined pill can increase SHBG, or sex hormone-binding globulin. SHBG binds to testosterone in the bloodstream. This can reduce the amount of free, active testosterone available to the body. Hertility always interprets androgen results in context, rather than looking at one hormone on its own.

SHBG (sex hormone-binding globulin) The combined pill substantially raises SHBG, which affects the interpretation of any androgen and oestrogen results. SHBG can remain elevated for months after stopping the pill in some people, which is another reason retesting after a full 3 cycles gives a clearer picture.

Thyroid hormones (TSH, Free T4) Hormonal contraception does not usually suppress thyroid hormones. You can usually test TSH and Free T4 whether you are on or off contraception.

Prolactin Most forms of hormonal contraception do not meaningfully affect prolactin. You can test prolactin at any point.

When to test your hormones after stopping the combined pill

Recommended wait before testing hormones: 3 cycles after stopping

The combined pill contains synthetic oestrogen and progestogen. It works mainly by stopping ovulation, which means it suppresses the natural rise and fall of cycling hormones such as FSH, LH and oestradiol.

For most people, natural hormone production begins to resume within a few weeks of stopping, but cycles can take up to 3 months to fully re-establish their rhythm. For the most accurate results, we recommend waiting 3 months after your last pill before testing cycling hormones (FSH, LH, oestradiol).

Can AMH be tested after stopping the pill?

AMH can be tested at any point, including while you are still on the pill. However, because AMH may be mildly suppressed during hormonal contraception use, testing after 3 full cycles off the pill may give the clearest baseline. If you test AMH while on the pill, the result can still provide useful information about ovarian reserve, but it should be interpreted in context.

When to test your hormones after stopping the progestogen-only pill (mini pill)

Recommended wait before testing hormones:  3 cycles after stopping

The progestogen-only pill, often called the mini pill, contains progestogen rather than oestrogen. It mainly works by thickening cervical mucus, making it harder for sperm to reach an egg. Some types can also suppress ovulation. Because the mini pill may still affect ovulation and cycle regularity, At Hertility, we recommend waiting until you have had 3 full cycles before testing your hormones.

This helps ensure your hormone results reflect your natural baseline rather than a cycle that is still finding its rhythm.

When to test your hormones after removing the contraceptive implant (Nexplanon)

Recommended wait before testing hormones: 3 cycles after removal

The contraceptive implant, including Nexplanon, releases a continuous low dose of progestogen. It can suppress ovulation and alter your bleeding pattern, which is why some people have irregular bleeding or no periods while using it. Once the implant is removed, hormone levels usually fall quickly and fertility can return within weeks for some people. However, cycles may still take time to regulate.

At Hertility, we recommend waiting 3 cycles post-removal before testing your hormones for the most accurate baseline.

When to test your hormones after stopping the contraceptive injection (Depo-Provera)

Recommended wait before testing hormones: until cycles have returned for 3 months (this can take up to 12 months or longer)

Depo-Provera is designed to last 12 weeks per dose, but the synthetic progestogen can remain in your system considerably longer after your final injection. For some people, periods return within a few months. For others, it can take up to 12 months or longer for ovulation and menstrual cycles to return.

At Hertility. we recommend waiting until your periods have returned and been regular for at least 3 cycles before testing your hormones. This helps ensure your results are not still being influenced by residual hormonal effects from the injection.

⚠️ If you’re planning to conceive after Depo-Provera, factor this timeline in early.The injection does not permanently affect fertility, but it can delay the return of ovulation compared with other contraception methods. If your period has not returned within 12 months of your last injection, speak to a doctor to rule out other causes.

When to test your hormones after removing the hormonal IUD (Mirena, Kyleena, Jaydess)

Recommended wait before testing hormones: 3 cycles after removal

Hormonal IUDs, including Mirena, Kyleena and Jaydess, release a low dose of progestogen directly into the womb. Because the hormone is mostly localised, many people continue to ovulate while using a hormonal IUD. However, hormonal IUDs can still affect bleeding patterns. Some people have lighter periods, irregular bleeding or no periods at all.

After removal, cycles often return within 1–3 months. At Hertility, we recommend waiting 3 cycles post-removal before testing your hormones for the most accurate baseline.

When to test your hormones after removing the vaginal ring (NuvaRing)

Recommended wait before testing hormones: 3 cycles after removal

The vaginal ring (NuvaRing) is a combined hormonal contraceptive. It releases oestrogen and progestogen and works in a similar way to the combined pill by suppressing ovulation. Once the ring is removed, your natural cycle may restart fairly quickly, but it can still take time for your hormones to settle. At Hertility, we recommend waiting 3 cycles post-removal before testing your hormones for the most accurate baseline.

When to test your hormones after removing the contraceptive patch

Recommended wait before testing cycling hormones: 3 cycles after removal

The contraceptive patch contains synthetic oestrogen and progestogen. It works in a similar way to the combined pill and vaginal ring, but the hormones are absorbed through the skin. Because the patch suppresses ovulation and natural cycling hormone production, the same guidance applies: wait until you have had 3 full cycles before testing hormones for the most accurate results.

When to test your hormones after removing the copper IUD

You can test at any point – before or after removal

The copper IUD is non-hormonal. It does not contain synthetic hormones and does not suppress ovulation.

That means it does not affect your natural hormone levels, AMH or cycling hormones. You can test your hormones at any point, whether your copper IUD is still in place or after it has been removed.

Fertility can return immediately after copper IUD removal, so if you are not planning to conceive straight away, make sure you have another contraception plan in place.

Can I test my hormones while still on hormonal contraception?

Yes, but only some hormones can be meaningfully tested while you are still using hormonal contraception. While on the pill, implant, injection, patch, ring or hormonal IUD, Hertility can assess markers such as:

AMH, which gives information about ovarian reserve.

Thyroid hormones, including TSH and Free T4.

Androgens, including testosterone and DHEAS.

SHBG, which helps interpret androgen results.

Prolactin, which can influence ovulation and periods when raised.

None of these are significantly suppressed by hormonal contraception, so results are still clinically meaningful. AMH may be mildly lower than your true baseline while on contraception, and androgen results should be interpreted alongside SHBG (which the pill raises considerably), but both are worth testing.

However, cycling hormones such as FSH, LH and oestradiol cannot be accurately assessed while hormonal contraception is suppressing your natural cycle. For those markers, waiting until you have had 3 full cycles gives the most accurate picture.

What if my period hasn’t come back after stopping hormonal contraception?

It can be normal for periods to take a little while to return after stopping hormonal contraception. However, if your period has not returned within a certain timeframe, it is worth seeking support.

Speak to a doctor if:

• Your period has not returned within 3 months of stopping the combined pill, mini pill, implant, patch, ring or hormonal IUD.
• Your period has not returned within 12 months of your last contraceptive injection.
• Your periods have returned but remain very irregular.
• You are trying to conceive and are unsure whether you are ovulating.
• You have symptoms such as acne, excess facial or body hair, hair thinning, unexplained weight changes, nipple discharge, pelvic pain or very heavy bleeding.

An absence of periods after stopping hormonal contraception is sometimes called post-contraceptive amenorrhoea. In some cases, it is simply your body taking longer to readjust. In others, contraception may have been masking an underlying issue such as PCOS, hypothalamic amenorrhoea, thyroid dysfunction or raised prolactin.

A hormone test can help identify what may be going on and guide the next steps.

What does a Hertility hormone test check?

Our Advanced Hormone & Fertility Test checks up to 10 key hormones including FSH, LH, oestradiol, AMH, testosterone, prolactin and thyroid hormones and screens for up to 18 conditions including PCOS / PMOS and thyroid disorders. Based on your results, our clinical team builds you a personalised care plan with clear next steps.

Whether you’ve just come off the pill, have had your implant removed, or are trying to understand why your cycle hasn’t returned, we can help you make sense of what your body is doing.

💡 Not sure which test is right for you? Take our Online Health Assessment, it asks about your contraception history and recommends the right test at the right time.

Frequently Asked Questions

When should I test my hormones after coming off the pill?

For the most accurate full hormone panel, Hertility recommends waiting until you have had 3 full menstrual cycles after stopping the pill. Hormonal contraception works by introducing synthetic hormones into your body, suppressing ovulation and disrupting the natural signalling between your brain and your ovaries. This gives your natural hormone signalling time to restart and helps ensure cycling hormones such as FSH, LH and oestradiol are measured at the right time.

Can you test fertility while on hormonal contraception ?

Yes, partially. While you are using hormonal contraception, Hertility can test markers such as AMH, thyroid hormones, androgens, SHBG and prolactin. However, cycling hormones such as FSH, LH and oestradiol cannot be accurately assessed while your natural cycle is being suppressed. For the most complete picture, retesting after 3 full cycles off hormonal contraception gives the clearest results.

What is the difference between waiting 3 months and 3 cycles after stopping the pill?

Three months and 3 cycles are not always the same thing. If your natural menstrual cycle is longer than 28 days, 3 months may not give you enough time to complete 3 full cycles. Waiting for 3 cycles gives a more reliable indication that your cycle has restarted and helps you time your hormone test correctly.

Does the contraceptive injection affect fertility long-term?

No. The contraceptive injection does not permanently affect fertility, but it can delay the return of ovulation and periods. For some people, fertility returns within a few months. For others, it may take up to 12 months or longer after the last injection.

Can coming off the pill affect AMH levels?

Yes. Some research suggests hormonal contraception can mildly suppress AMH levels during use. AMH usually returns towards baseline within a few months of stopping. Testing AMH while on the pill can still be useful, but testing after 3 full cycles off contraception may provide the clearest baseline.

Can I test hormones immediately after removing a copper IUD?

Yes. The copper IUD is non-hormonal, so it does not suppress ovulation or affect your natural hormone levels. You can test hormones before or after copper IUD removal.

What hormones cannot be tested accurately on hormonal contraception?

Cycling hormones such as FSH, LH and oestradiol cannot be accurately interpreted while you are using hormonal contraception, because these hormones are directly affected by cycle suppression. Other markers, such as AMH, thyroid hormones, androgens, SHBG and prolactin, can still be clinically useful.

Why has my period not returned after stopping birth control?

Your body may simply need more time to restart ovulation and regular cycles. However, if your period has not returned within 3 months of stopping most hormonal contraception, or within 12 months of your last contraceptive injection, speak to a healthcare professional. Conditions such as PCOS, thyroid imbalance, hypothalamic amenorrhoea or raised prolactin can sometimes be unmasked after stopping contraception.

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Resources

1. https://www.nhs.uk/conditions/contraception/when-periods-after-stopping-pill/
2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237896/
3. https://www.fsrh.org/standards-and-guidance/documents/ukmec-2016/
4. https://pubmed.ncbi.nlm.nih.gov/6242699/
5. https://www.nhs.uk/conditions/contraception/contraceptive-injection/
6. Hariton E, Shirazi TN, Douglas NC, Hershlag A, Briggs SF. Anti-Müllerian hormone levels among contraceptive users: evidence from a cross-sectional cohort of 27,125 individuals. Am J Obstet Gynecol. 2021 Nov;225(5):515.e1-515.e10. doi: 10.1016/j.ajog.2021.06.052. Epub 2021 Jun 12. PMID: 34126087.