<http://schema.org/articleBody>
" How soon can I take a pregnancy test? While most kits state that it&amp;#039;s okay to test the day you miss your period, you&amp;#039;re better off waiting until you&amp;#039;re at least three days late, says Allen J. Wilcox, M.D., a National Institutes of Health researcher. &amp;quot;These products detect hCG, a hormone that surges after implantation,&amp;quot; he explains. &amp;quot;But the egg doesn&amp;#039;t always implant before you&amp;#039;re expecting your period, so if you test on that first day, you may get a false negative result.&amp;quot; His research found that 10 percent of pregnancies weren&amp;#039;t detected when lab tests were done the first day of a missed period. OTC kits, which are less sensitive, may miss as many as 25 percent. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cosmopolitan.com/sex-love/advice/a541/when-take-pregnancy-test/>