Progesterone
Private Progesterone testing in London for £48, measuring one reproductive hormone marker with results expected in around 1 day.
Turnaround time
1 business day
Biomarkers count
1
Book your test
Choose Service Type
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
Home Visit Details
Home visits require at least 24 hours notice.
Select a clinic: Sorting by distance…
{{ clinicAddress(clinic) }}
{{ clinicAddress(selectedClinic) }}
Select a date
Select an hour
Available time slots: {{ timeSlots.length}}
Overview of the Progesterone Test
The Progesterone blood test measures Progesterone, a steroid hormone that rises after ovulation and plays a central role in the menstrual cycle and early pregnancy.
The test assesses 1 hormone biomarker: Progesterone.
Before ovulation, Progesterone concentrations are generally relatively low.
After an ovarian follicle releases an egg, the remaining follicular tissue forms the corpus luteum.
The corpus luteum produces Progesterone during the luteal phase.
Progesterone prepares and maintains the endometrium for possible implantation.
If pregnancy occurs, Progesterone remains important in supporting the uterine environment.
If pregnancy does not occur, Progesterone falls and menstruation begins.
Measuring Progesterone at the correct point in the menstrual cycle can therefore provide useful evidence about whether ovulation has occurred.
The traditional description of a “day 21 Progesterone” assumes a 28-day cycle with ovulation around day 14.
This timing is not appropriate for everybody.
A more useful approach is generally to test approximately seven days before the expected next period, or roughly seven days after suspected ovulation.
In people with irregular cycles, ovulation tracking can help determine the most appropriate sampling date.
Progesterone is also produced in smaller amounts by the adrenal glands and testes, so the hormone is present in men as well as women.
Hormonal medication, fertility treatment and pregnancy substantially alter expected concentrations and must be considered during interpretation.
What Does the Progesterone Test Check?
The test measures circulating Progesterone. This test measures 1 biomarker.
Progesterone
Measures a steroid reproductive hormone that rises after ovulation and provides information about luteal-phase activity, menstrual-cycle timing and selected fertility questions.
Who May Benefit From the Progesterone Test?
Progesterone testing is particularly useful when ovulation or luteal-phase hormone activity needs assessment.
Women investigating whether ovulation has occurred - A correctly timed luteal Progesterone can provide evidence of recent ovulation.
Women undergoing fertility assessment - Progesterone is commonly included when reproductive hormone function is evaluated.
Women with irregular menstrual cycles - Testing can help establish whether ovulation occurs during a particular cycle.
Women undergoing ovulation induction or fertility treatment - Specialist protocols can use Progesterone measurements.
Women with a previous low mid-luteal Progesterone result - Repeat correctly timed testing may clarify the pattern.
People taking Progesterone as part of hormone treatment - Measurement may occasionally be used depending on the treatment protocol.
Women with unexplained difficulty conceiving - Ovulation assessment can form one part of a broader fertility investigation.
People having Progesterone measured alongside FSH, LH and Oestradiol - The combined pattern provides wider reproductive context.
How to Prepare
Incorrect timing is one of the most common reasons for an apparently low Progesterone result.
A sample collected too early or too late in the cycle may not accurately reflect the mid-luteal peak.
Symptoms and Reasons to Consider the Progesterone Test
Progesterone testing is usually driven by menstrual or fertility questions rather than one specific symptom.
Irregular menstrual cycles - Irregular ovulation can produce changing Progesterone patterns.
Difficulty conceiving - Confirmation of ovulation can form part of fertility assessment.
Very long or unpredictable cycles - Testing may help establish whether ovulation occurred.
A suspected anovulatory cycle - Low appropriately timed Progesterone can support absence of recent ovulation.
Monitoring fertility treatment - Progesterone can be included according to the treatment protocol.
A previous inconclusive ovulation result - Correcting the timing of the sample can improve interpretation.
One Progesterone result cannot assess every cause of infertility.
Persistent menstrual irregularity, infertility or recurrent pregnancy concerns should be assessed within a broader clinical and reproductive context.
How to Book Your Progesterone Test
The Progesterone test can be booked privately for focused reproductive hormone assessment.
Choose the Progesterone
Select the individual Progesterone blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where suitable.
Attend your appointment
Time the appointment appropriately for the clinical question and a trained healthcare professional will collect the venous blood sample.
Laboratory analysis
Your serum undergoes measurement of Progesterone.
Receive your results securely
Your authorised result is delivered securely and can be interpreted according to cycle timing, fertility treatment and other reproductive hormone results.
When Will I Receive My Results?
The current specialist laboratory turnaround for Progesterone is approximately 1 day after laboratory receipt.
The test is routinely processed using an endocrine immunoassay and undergoes laboratory quality control and authorisation before release.
Understanding Your Results
Progesterone interpretation depends strongly on when the sample was taken during the menstrual cycle.
A low concentration before ovulation is physiologically expected.
Progesterone should rise after ovulation.
A clearly increased mid-luteal result can provide evidence that ovulation has occurred.
An apparently low luteal result can mean ovulation did not occur, but poor timing is another common explanation.
A single result does not necessarily assess the quality of the entire luteal phase.
During pregnancy, concentrations are interpreted differently.
Hormone treatment can also produce results that cannot be compared directly with untreated menstrual-cycle ranges.
The laboratory range and exact cycle day should therefore always be considered together.
Why Book With London Blood Tests?
London Blood Tests provides private Progesterone testing for fertility and reproductive hormone assessment.
Measures a key post-ovulation hormone - Progesterone normally rises after an egg is released.
Useful for ovulation assessment - Correctly timed testing can provide evidence that ovulation occurred.
Relevant to fertility investigation - Progesterone can complement FSH, LH and Oestradiol.
Suitable for irregular cycles - Testing can be timed according to suspected ovulation rather than a fixed calendar day.
Useful during selected fertility treatments - Monitoring can be incorporated according to specialist protocols.
Rapid laboratory turnaround - Results are expected approximately 1 day after laboratory receipt.
Professional blood collection - Clinic and suitable home or hotel appointments are available.
Clear pricing - The Progesterone test costs £48.
Private Progesterone Blood Test in London
London Blood Tests provides private Progesterone testing for people requiring assessment of ovulation and reproductive hormone activity.
The test costs £48 and measures 1 hormone biomarker.
Results are expected approximately 1 day after laboratory receipt.
For ovulation assessment, correct timing relative to ovulation and the expected next period is essential.