First Response®

What You Should Know If You Think You're Pregnant

How Pregnancy Tests Work
All at-home pregnancy tests detect the hCG hormone levels in a woman's urine to determine if she is pregnant.
Find out how tests work

Accuracy & Knowing Sooner
What increases the sensitivity of an at-home pregnancy test? What factors can affect a test's accuracy?
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Signs
There are signs of pregnancy that are obvious, and others not so obvious. Knowing all the signs may help you take better care of yourself and your baby earlier.
Learn more

Recommended Reading
Additional resources on pregnancy and pregnancy tests.
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Related Links
Early Result Pregnancy Test >>
Digital Pregnancy
Test >>
Due Date Calculator >>
Common Pregnancy Questions >>