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Free tool

Hormone cycle check

One reference range for your whole cycle tells you almost nothing. Progesterone of 4 nmol/L on day 3 is entirely normal. The same 4 nmol/L on day 21 suggests you did not ovulate. This check reads your value against the phase you were actually in.

Check your hormone value

Everything is calculated in your browser. Your values are never stored or sent anywhere.

Which hormone?
Your value
Where are you now?
Are you using hormonal contraception?
How long is your cycle, usually?

From the first day of one period to the first day of the next.

Which cycle day was the blood drawn?
Your age
I take a biotin supplement (hair, skin, nails)

Reference ranges differ between laboratories

There is no universal reference range for these hormones. The answer depends on the laboratory method. If your own report carries a reference range, always trust that one over ours.

This check is meant to help you understand your result, not to diagnose. Always discuss your blood values with your doctor.