Ovulation Progesterone Blood Test, from our experts to you.
Dr Sam Rodgers MBBS, MRCGPChief Medical Officer
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What happens to progesterone levels when ovulating?
Typically, progesterone levels peak five days after ovulation and then decline. A progesterone test performed seven days before your next period is due can identify whether or not you have ovulated. If ovulation didn't happen, your progesterone levels will be lower than expected. If you become pregnant, your progesterone levels will continue to rise.
If you're planning a pregnancy, healthy progesterone levels are essential to prepare your womb lining. Therefore, our test is a helpful first step to look into your fertility.
Can a progesterone blood test detect ovulation?
Our doctors can tell you whether your progesterone level was high enough for ovulation to have occurred. A borderline result may mean that the result is inconclusive, and we cannot say whether ovulation occurred. In these circumstances, we suggest repeating the test at a later date.
When should I test my Ovulation Progesterone Blood Test?
We recommend you take this test seven days before your next period is due. If you don't have a regular cycle, aim to take it on the 21st day after the start of your last period.
What's included?
How to prepare for your test
Special instructions
Prepare for your Ovulation Progesterone Blood Test by following these instructions. Take this test 7 days before your next period is due. It can be taken at any time if you are not having periods. Avoid taking your sample from a finger used to apply hormone gels/pessaries 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.