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Hello Dr Jacobs, I have had a serious of progesterone blood tests taken over a period of months (on day 21) and my progesterone level has been different every month (when taken on day 21), they veried from 55, 85 to 53 nmol/L. Does a higher level mean I realised 2 eggs? Why would the levels vary if taken on the same day of my cycle? Thank you in advance for you answer,
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Progesterone, like all hormones, is not secreted in a steady flow. It is secreted in bursts, about every 90 minutes. As a result, there are spikes and troughs.
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