Progesterone — The Calm Counterweight to Estrogen
Progesterone is the hormone your body leans on for balance. It works in tandem with estrogen — when progesterone is too low relative to estrogen (hello, estrogen dominance), things get messy. We're talking mood swings, sleep problems, cycle chaos, and that general 'something's off' feeling. In men, progesterone supports prostate health and hormonal equilibrium. It doesn't get the spotlight it deserves.
Why Test Progesterone?
Progesterone testing helps confirm ovulation (tested on day 21), evaluate miscarriage risk, and identify hormonal imbalances behind irregular periods, headaches, mood swings, sleep issues, or breast tenderness. If you're trying to conceive, this is essential data.
What Do High Progesterone Levels Mean?
High progesterone can be caused by ovarian cysts, non-viable pregnancy, stress, excessive caffeine, smoking, or certain health conditions. Signs include persistent fatigue, bloating, breast tenderness, mood swings, headaches, dizziness, and weight gain around the middle.
What Do Low Progesterone Levels Mean?
Low progesterone can result from declining ovarian function, stress, ageing, obesity, or menopause. You might experience irregular or skipped periods, spotting, heavy bleeding, mood swings, anxiety, depression, fatigue, breast tenderness, low libido, weight gain, and sleep disturbances.
Symptoms to Watch For
- Irregular or absent periods
- Heavy or prolonged bleeding
- Mood swings, anxiety, or depression
- Breast tenderness
- Difficulty conceiving or recurrent miscarriage
- Sleep disturbances
Who Should Get Tested?
- Women tracking ovulation or trying to conceive
- Those with irregular or heavy periods
- Women with suspected miscarriage
- Anyone dealing with premenstrual symptoms
- Women being evaluated for hormonal imbalances
How to Prepare for Your Test
Do not take this test while on hormonal contraceptives. Note the day of your menstrual cycle. Bring valid ID to your appointment. If you take a supplement containing biotin (often sold for hair and nails), pause it for two days before the test, as high doses can distort the result.
Order Your Blood Test
Test your Progesterone levels with an accredited Swedish laboratory. Results within days, reviewed by Wellth.
Frequently Asked Questions
Why is progesterone tested on day 21?
Can stress affect progesterone levels?
Is progesterone important for men?
Reviewed by
Wellth Team
Wellth
Our content is written and reviewed by Wellth, and fact-checked against peer-reviewed research and current Swedish clinical guidelines.
Learn more about our team →Medical Disclaimer
The information on this page is provided for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Wellth provides health information and testing services but is not a substitute for clinical care. Always consult a qualified healthcare provider if you have questions about a medical condition. If you are experiencing severe or urgent symptoms, contact your doctor or call 1177 Vårdguiden. Blood test results should be interpreted by a qualified healthcare professional in the context of your complete medical history.