How accurate is the pregnancy test?

Our tests are laboratory rated and 99% accurate. Urine-based pregnancy tests detect the hCG hormone in a pregnant woman’s system. Since the production of hCG can vary greatly from woman to woman, sometimes as much as 20 fold, time periods when a “positive” test occurs can also vary. Our pregnancy tests can often detect some women’s hCG level as early as 7 days after conception (21-24 days after the first day of your last period), although some women’s hCG level is not detectable until at least one week after a missed period.