Pregnancy Tests, Accuracy

Hello problmatic,

A pregnancy test detects levels of the hormone, human chorionic gonadotropin (hCG). This hormone is produced by the cells that form the placental. Levels can be detected in blood about 11 days following conception. A blood pregnancy test is more sensitive or has a higher accuracy rate than a urine pregnancy test.

Levels of hCG can be detected in urine about 12 to 14 days following conception. Some home pregnancy test claim to be accurate as early as the first day of a missed period. However, for the most accurate results, wait until one week after a missed period. Following the directions carefully, using a test that has not expired, and testing with the first urine of the morning insure accurate results.

As long as the test kit is not beyond its expiration date and is a brand name, it doesn't matter where you purchase it.

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Maryann