How Do Pregnancy Tests Work? Pregnancy tests work by detecting a hormone called human chorionic gonadotropin, commonly known as hCG, in your urine.

TikTok claims you can test for pregnancy at home using sugar and urine. But does the sugar pregnancy test actually work? We asked doctors to weigh in.

How do home pregnancy tests work? When a fertilized egg attaches to the lining of your uterus, a placenta starts to form and your body produces a hormone called human chorionic gonadotropin, or hCG.

Taking pregnancy tests at night only influences results in a specific circumstance—namely, you're still very early in the pregnancy so your body produces small amounts of hCG.

Keke Palmer's pregnancy test turned from negative to positive. Why that happens — and how to read a pregnancy test, according to the experts.

In some cases, what looks like a positive pregnancy test result may actually be an evaporation line, also called an evap line. Here's how to tell the difference.

If the at-home sugar pregnancy test trend has caught your eye, you might be wondering about its success rate. We asked the experts for more.

Home pregnancy tests are convenient and generally reliable, but there can be situations where they show a false positive.

Home pregnancy tests cost about $3, on average, while a blood test from a lab costs around $64. You may be able to get a free pregnancy test at a women's health center.