Home pregnancy tests work by detecting the hormone produced during pregnancy (Human chorionic gonadotropin or hCG) in the urine. The test uses special dyes to show lines or symbols on a test strip.

Home pregnancy tests advertise 98-99% accuracy if used properly, about the same level of accuracy as a blood test. But those words "used properly" are doing a lot of heavy lifting.

How Accurate Are Pregnancy Tests? So, can you really trust your home pregnancy test? Very much so, since they are up to 99 percent accurate when used correctly and after a missed period.

Most pregnancy tests claim to be 99% accurate, but some are more sensitive to very low levels of hCG than others. That means you may or may not get an accurate result when testing before your ...

How much is a home pregnancy test? Home pregnancy tests cost about $3 per test, on average. But because you usually have to buy a pack of multiple tests, you can plan to spend between $5 and $40. You ...

Researchers at the University of Birmingham collected and analysed 30 self-test kits, costing between £1.89 and £39.99, in ...

Home pregnancy tests advertise 99% accuracy but that can depend on when you take them, according to the Mayo Clinic. Levels of hCG rise drastically after implantation.

In case you're not familiar with the phrase, the two-week wait is the time between ovulation and your expected period, which is when you can get an accurate home pregnancy test result.

The GTT@home test is already being successfully used by NHS trusts. Using standard NHS sample processing procedures, 9% of women in the study were diagnosed with gestational diabetes.