How common are First Response false positives?

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.

Is first response always accurate?

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

How often is first response 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.

Can you oversaturate a pregnancy test?

Although many factors can contribute to a false-negative pregnancy test, the hook effect occurs when the woman has a high concentration of human chorionic gonadotropin (hCG), the pregnancy hormone. The high levels oversaturate the test and result in a false negative.

Is first response a good pregnancy test?

The First ResponseTM Early Result Pregnancy Test, voted the most accurate and best overall home pregnancy test, can be used up to five days before your due date. You can test with an accuracy rate…

How reliable is a first response pregnancy test?

First Response is the#1 best-selling pregnancy test brand[4]

Provides 3 ways to test for added assurance

The only brand that can tell 6 days before your missed period[2]

Detects all forms of the pregnancy hormone[3]

Over 99% accurate[1]

How effective are first response pregnancy tests?

Take the test too early. The earlier after a missed period that you take a home pregnancy test,the harder it is for the test to detect HCG.

Check test results too soon. Give the test time to work.

Use diluted urine. For the most accurate results,take the test first thing in the morning — when your urine is the most concentrated.

How soon can first response detect pregnancy?

Below an hCG level of 1,200 mIU/ml,the hCG usually doubles every 48-72 hours,though a rise of 50-60% is still considered normal and determines how early can pregnancy be

Between 1,200 and 6,000 mIU/ml serum,the hCG usually takes 72-96 hours to double.

Above 6,000 mIU/ml,the hCG often takes more than four days to double.