The First Response Pregnancy Test detects the pregnancy hormone called hCG (human chorionic gonadotropin) in your urine. The amount of pregnancy hormone in your body increases during the first three months of pregnancy.The First Response Pregnancy Test is so sensitive that there is usually enough hCG to be detected as early as the first day of your missed period.
Test any time of the day. Just hold the test in your urine stream for 5 seconds. Results in 3 minutes.