In other words, that's when normal pregnancy tests are taken. If you take an early test before this date then the accuracy rates drops significantly. For example, a First Response Early Result will only detect a pregnancy in 62% of women when used 6 days early as advertised – that's a 1 in 3 chance of being wrong.05-Oct-2017

Can you get a false-positive on a First Response pregnancy test?

A pregnancy test works by detecting the hCG hormone, which is usually only present in your body if you're pregnant. A positive pregnancy test result will mean you are almost certainly pregnant. Getting a true false positive – when you were never pregnant in the first place – is incredibly rare.

How accurate is first response false-positive?

A false-positive test result only happens less than 1% of the time, but when it does, it can make the following days or weeks confusing before you realize you're not actually pregnant.

What are the chances of having a false-positive pregnancy test?

The good news for prospective testers is that the chances of a false positive pregnancy test are very low. So just how common are false positive pregnancy tests then? “False positive pregnancy tests are rare and occur less than 1 percent of the time,” confirms DuMontier.

What are the chances of first response being wrong?

Studies on the packaging of such kits as First Response say 48 percent of women get a "false negative" result when they test three days before their expected period. In other words, the test told nearly half of the women they weren't pregnant when, in fact, they were.

How accurate is the first response test?

FIRST RESPONSE™ Early Result Pregnancy Test is over 99% accurate from the day of the expected period in laboratory studies.

How sensitive is a First Response pregnancy test?

Results: First Response Early Result had an analytical sensitivity of 6.3 mIU/mL, which was estimated to detect greater than 95% of pregnancies on the day of missed period. The sensitivity of Clearblue Easy Earliest Results was 25 mIU/mL, which indicated detection of 80% of pregnancies.

How accurate are 1st Response pregnancy tests?

FIRST RESPONSE™ Early Result Pregnancy Test is over 99% accurate from the day of the expected period in laboratory studies.