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A 30-year-old member asked:

Do some pregnancy test don't work?

2 doctor answers4 doctors weighed in
Dr. Dennis Higginbotham
American Board of Obstetrics and Gynecology 31 years experience
Rare: The currently available pregnancy tests are accurate over 98% of the time. It is uncommon for one to be wrong.
Dr. Carlos Satulovsky
Psychiatry 29 years experience
The main reason: The most common cause for the wrong result is to use the wrong technique, or expecting the test to detect pregnancy beyond the period of time it was designed for.

Similar questions

A 33-year-old member asked:

How can a home pregnancy test work?

1 doctor answer3 doctors weighed in
Dr. Wendy Askew
25 years experience
Hcg: Home urine pregnancy tests measure levels of the beta subunit of the human Chorionic Gonadotropin hormone. It becomes present in the body once implantation of a fertilized egg has occurred.
A 36-year-old member asked:

Could you describe how does the pregnancy test work?

1 doctor answer1 doctor weighed in
Dr. Michael Sparacino
Family Medicine 38 years experience
Follow directions: Home pregnancy tests generally become positive when you're about 1 week late with respect to your period. If it's negative, repeat in 1 week.
A 38-year-old member asked:

When would a pregnancy test work best?

1 doctor answer1 doctor weighed in
Dr. Michael Sparacino
Family Medicine 38 years experience
1 week late: Home pregnancy tests do not turn positive until you're about a week late. If it's negative, repeat in 1 week.
Barbados
A 25-year-old female asked:

Does the bleach pregnancy test work ?

1 doctor answer1 doctor weighed in
Dr. Mary David
Specializes in Obstetrics and Gynecology
No: If you want to know if you are pregnant, get one of the home pregnancy tests that are very reliable. Don't trust bleach.
A 43-year-old member asked:

When will a pregnancy test work after sex?

2 doctor answers7 doctors weighed in
Dr. Romanth Waghmarae
Pain Management 40 years experience
Pregnancy test: It will work after sex when you are pregnant and if you are not pregnant. Not sure exactly what the question is?

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Last updated Sep 15, 2013

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