Can a pregnancy test give false results after 10 min?

I checked the test after two minutes and it was negative. I checked it an hour later, well, I picked it up to throw it away and it said positive. Is this normal?

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Asked by stenhouse_baby at 1:29 AM on Dec. 30, 2011 in Pregnancy

2234 Level 15

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Yep. You have to read it in the time alloted and then toss it. What you see is an evaporation line.

Also... test in the AM with first morning urine. Pregnancy hormone is most concentrated. Testing at night is generally a waste of a test because the hormone will be too diluted to be read unless you're VERY pregnant...and if you are you won't need the test.

Answer by gdiamante at 1:32 AM on Dec. 30, 2011
Credits: 47737 Level 31 Pregnancy Minor

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I tested first thing in the morning. I have other symptoms, but I have been on birth control AND condoms... so I dont know how it could be possible =/

Comment by stenhouse_baby (original poster) at 1:33 AM on Dec. 30, 2011
Credits: 2234 Level 15 Pregnancy 101
All forms of birth control can fail. Even when stacked up. The ONLY certain way to avoid pregnancy is to not have sex or to have reproductive organs removed.

Answer by gdiamante at 1:40 AM on Dec. 30, 2011
Credits: 47737 Level 31 Pregnancy Minor

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In addition to what gdiamante said, remember that pregnancy symptoms and PMS symptoms are remarkably alike...

Answer by winterglow at 4:25 AM on Dec. 30, 2011
Credits: 12765 Level 22 Pregnancy 101

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Yes it can...it is called an evaporation line. That is why it says on the pregnancy test instructions not to read results after 10 minutes.

Answer by asmcbride at 8:17 AM on Dec. 30, 2011
Credits: 21526 Level 24 Pregnancy Minor

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