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We've helped over 200,000 people take control of their health. Are you looking for answers about your fertility? Take our Day 3 Fertility Blood Test on the third day of your period to give you an idea of your ovarian reserve. It can be a helpful test if you are currently trying or thinking about starting a family and would like to check your reproductive hormones.
FSH
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LH
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Oestradiol
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Oestradiol is the strongest of the three oestrogens. It's labelled a female hormone but it's made in both the ovaries and testes. It's responsible for the growth of breast tissue, the female reproductive system, and male sexual function.
In pre-menopausal women, oestradiol levels vary throughout the monthly cycle, peaking just before ovulation. Levels are lowest after menopause when the ovaries stop producing eggs. Low oestradiol levels in women can cause many symptoms associated with the menopause, including hot flushes, night sweats, and changes in mood. It can also increase the risk of osteoporosis (a condition where the bones become less dense).
In men, oestradiol levels tend to increase slightly with age as testosterone levels decline. Too much oestradiol in men can contribute to fertility problems, gynecomastia (enlarged breast tissue), and erectile dysfunction.
If you're taking your test to learn more about your fertility, take your test between days 2 and 5 of your menstrual cycle, or ideally day 3. Otherwise, for a general health check or if you're postmenopausal, you can take your test at any time.
In either case, it's important to log the date of your last period, and any other information regarding your periods or menopause status, in your MyMedichecks account right after taking your sample.
If you don't let us know the date of your last period, we'll interpret your result as though you took your test on day 3.
Prepare for your Day 3 Fertility Blood Test by following these instructions. Take this test two to five days after the start of your period, ideally on day three. It can be taken any time if you do not have periods. Avoid taking a finger-prick sample from a finger used to apply hormone gels/pessaries/patches in the past 4 weeks. Use gloves to apply these. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed. Hormonal contraception can affect the results of this test. Taking a break from this and waiting for your periods to restart before your blood test will give more accurate results.
Your personalised, actionable health results are only a few clicks away. Order your test, take and post your sample, then view your results online with our doctors' comments.
MyMedichecks is your personal online dashboard where you can view your results, access clear and simple explanations about individual health markers, monitor changes in your health, and securely store information about your medical history, lifestyle, and vital statistics.
Our test includes Follicle-stimulating hormone (FSH), luteinising hormone (LH), and oestradiol. FSH is released from a gland in your brain (the pituitary gland) to stimulate the ovary to start maturing an egg. LH is required for the final maturation and release of the egg from a follicle (a fluid-filled sac containing the egg), while the hormone oestradiol stimulates the growth of the follicle and prepares the womb lining for pregnancy.
The levels of hormones in your body on day three of your cycle can indicate whether hormonal problems are likely to affect ovulation and conception and whether a condition like polycystic ovaries may be affecting fertility.
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. It is recommended to wait until your periods have re-established a regular cycle (for you) before taking this test.
Our day three fertility test is a helpful first test in an investigation into female infertility. Ideally, you should take our test three days after the start of your period, but it can also be taken on days two, four, or five of your menstrual cycle. This test aims to check that hormone levels can support the maturation and release of a healthy egg from the ovary.
