A Quick Primer On Pregnancy Tests
Pregnancy tests are over 90-percent accurate when used following a missed period. To find out earlier, you need to use an ultra sensitive test like First Response, which can determine pregnancy 3-6 days before a missed period. While false positives are unlikely, false negatives can happen based on when the egg was fertilized or how much water is in the urine. Bottom line: After she washes the pee off her hand, have a doctor double check the results.