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General Health
How to Book a Same-Day Private GP Appointment in London
It’s common to need a GP appointment at short notice. Health concerns don’t always follow a schedule, and symptoms can
May 12, 2026
Progesterone is a very important hormone since it plays an essential role in regulating various functions within the body (particularly in women). It is primarily involved in your menstrual cycle, pregnancy, and the development of the foetus. A progesterone blood test measures the level of progesterone in your bloodstream and is an essential test to assess your hormone levels and reproductive health.
A progesterone test can indicate a variety of conditions, including polycystic ovary syndrome (PCOS), thyroid disorders, or adrenal gland problems. To give you an idea, it is currently estimated that approximately 325,000 women in London are living with PCOS, around 225,000 are affected by thyroid disorders, and roughly 2,600 women are likely living with adrenal insufficiency.
It is also useful in checking the health of early pregnancy, especially in cases involving suspected miscarriage or ectopic pregnancy. If you are undergoing fertility treatment or hormone therapy or struggling with irregular menstrual cycles, monitoring your progesterone levels can provide essential information.
Your progesterone levels can vary depending on different factors like the phase of your menstrual cycle when getting tested, your age, and whether or not you are pregnant or undergoing hormone therapy.
The results of your progesterone blood test will be given in nanograms per millilitre (ng/mL). Generally, normal progesterone results are below 1 ng/mL before ovulation. After ovulation, higher levels, typically between 5 and 20 ng/mL are to be expected.
If you are pregnant, your progesterone levels can range from 10 to 90 ng/mL in early pregnancy. However, one of our healthcare providers will interpret your results based on your health circumstances, menstrual cycle phase, or fertility status.
Here is a quick look into what low and high progesterone levels could potentially indicate.
Low Progesterone Levels May Suggest:
High Progesterone Levels May Suggest:
Use our online booking engine or book your test by giving us a call.
On the online booking engine select the “appointment type” you need.
You will be seen by one of our friendly phlebotomists or trained clinicians.
Knowing the timing of your menstrual cycle is useful, as your progesterone levels tend to fluctuate throughout your cycle. However, we will specify the best time to take the test. Please avoid taking any hormonal medications (if instructed) or supplements that could affect your test results.
A progesterone test is a very simple and straightforward blood test. It involves drawing a small sample of your blood, usually from your inner elbow. The process is quick and may cause a slight pinch.
Results from the progesterone blood test typically take a few days to process. Your healthcare provider will inform you when and how you will receive the results, either through a phone call, email, or follow-up appointment. If your progesterone levels are abnormal, your healthcare provider may recommend further testing or treatment depending on the reason for the test.
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We offer a wide range of private blood tests in London. Same-day appointments are available 5 days a week.
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