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Home Pregnancy Test

Home pregnancy tests use a sample of a woman's urine to detect the presence of a hormone (called human chorionic gonadotropin, or hCG) that is produced during pregnancy. If the test is positive for the hormone, it usually means the woman is pregnant.

These tests are available without a prescription, and their accuracy varies. If used correctly, the best tests can detect hCG as early as the first day of a missed menstrual period (about 14 days after conception). A first morning urine sample (which has accumulated in the bladder overnight) provides the most accurate test results.

By Healthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer Siobhan M. Dolan, MD, MPH - Reproductive Genetics
Current as of April 4, 2012

WebMD Medical Reference from Healthwise

Last Updated: April 04, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.