Pregnancy tests: How does it work | 合法醫療器材資訊網

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A pregnancy test can confirm if a woman is pregnant. The test can be carried out at home or in the doctor’s office.

A pregnancy test is around 99 percent[1] reliable.

It works by measuring levels of a hormone called human chorionic gonadotropin (HCG). HCG can be present in the blood and urine approximately 10 to 14 days[2] after conception.

If a woman misses a period or other signs suggest she may be pregnant, it is a good idea to take a test.

A woman should know as early as she can if she is pregnant, as she will probably need to monitor her health more carefully, and she may need to make some lifestyle changes.