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Day 3 Fertility Check Blood Test
Day 3 Fertility Check Blood Test
Day 3 Fertility Check Blood Test
Day 3 Fertility Check Blood Test

Day 3 Fertility Check Blood Test

A test of your reproductive hormones on cycle day 3 to assess egg production and ovarian reserve which can affect your fertility.

Is it for you?

Do you want to start a family either now or in the future and are wondering about your fertility? Or are you actively trying for a baby without success? Perhaps you are just curious about your fertility and want a fertility MOT? If so, this day 3 fertility test will tell you whether there is a hormonal reason that could affect your chances of becoming pregnant.
Blood sample 3 tests included 2 working days turnaround


Key biomarkers - see full list below

  • You are planning to have a baby and you want to check your hormone status
  • You are struggling to conceive and you want to check your fertility
  • You want a general check of your reproductive hormones
  • You want to know your hormone status so that you can plan ahead for starting a family
This day 3 fertility test is normally the first test that is performed in any investigation into female infertility. It is performed 3 days after the start of your period (but it can also be taken on day 2 ,4 or 5) during the follicular stage of the menstrual cycle. The aim of the test is to check that hormone levels can support the maturation and release of a healthy egg from the ovary. 

Follicle stimulating hormone (FSH) is released from the pituitary gland to stimulate the ovary to start maturing an egg. Luteinising hormone (LH) is required for the final maturation and release of the egg from a follicle, while oestradiol both stimulates the growth of the follicle and prepares the uterine lining for a pregnancy.

The levels of hormones in the body on day 3 can indicate whether hormonal problems are likely to affect ovulation and conception, and whether a condition like polycystic ovaries may be affecting fertility. Our doctors will interpret your hormone check and advise you whether you need to see your doctor or specialist for further investigation. 

Please note that any hormones you are taking for contraception or hormone replacement therapy (HRT) will influence your results. If you are looking for a true picture of your fertility status then please take this test at least 12 weeks after stopping any hormone replacement or contraceptive pill, implant or hormone IUD. We suggest waiting until your periods have re-established a regular cycle (for you) before taking this test.
You need to let us know the date of the first day of your last period (if you have them), this lets our doctors interpret your test accurately. You will receive an email asking you to complete this information in your MyMedichecks account, there is an option to tell us if you no longer have periods. This test is usually taken between days 2 and 5 of your period. High dose biotin supplements can affect this test. If you are taking more than the recommended daily amount then you should not take your supplements for 2 days prior to this test. If you are taking high dose biotin for medical reasons (e.g. multiple sclerosis) then you should discuss this with your doctor. Use of oestrogen containing medications such as hormone replacement therapy or the combined oral contraceptive pill can affect the results of this test. Please use your MyMedichecks account to let us know if you are taking these. You will get more accurate results if you are able to take this test during a break from your oestrogen containing medication. If you are taking a finger-prick sample and you use any form of hormone-containing gel or pessary (eg hormone replacement therapy or testosterone replacement therapy) then we recommend that you take your blood sample from a finger which has not been in contact with the gel or pessary for several weeks, wearing a glove whilst applying the medication can help with this.

3 simple steps

  • Take the test

    Take the test - either using your kit or visit a clinic.
  • Post your sample

    Send your sample in the freepost pack to our fully accredited lab.
  • Get your results

    Get your doctor reviewed results on
Expert interpretation<br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team are on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our partner laboratories

What our customers say

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Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.