Take this test two to five days after the start of your period, ideally on day three. If you do not have periods, the test can be taken any time.
If you have an irregular menstrual cycle, are currently taking hormonal contraceptives, or have taken them in the last 3 months, this may affect the accuracy of your results.
In addition, before taking this test:
- Wait for symptoms of short-term illness to pass
- Avoid heavy exercise for 48 hours
- Avoid fatty foods for 8 hours
- Do not take any daily medication or vitamin/mineral supplements