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Yes there is a possibility for a negative test to be positive for two simple reasons: A. The test isn't dectecting the baby hormone simply because it may be to soon or B: the test is defective. Either way if you are in doubt you can go to your Local Health Department for a more precise test such as Blood or simply make a doctor's appt.

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13y ago
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16y ago

Yes, because when you took the first pregnancy test it could have been too early in the pregnancy to detect any hCG.

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14y ago

Yes, this is possible. In general, results that appear after 5-10 minutes are inaccurate.

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14y ago

Yes, it all depends on the HcG levels.

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12y ago

nahhh thats not possible

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Q: Can a negative pregnancy test change positive after long time?
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Related questions

You left your pregnancy test on the bench and when you returned from work it had turned positive - why?

you will want to go to the doctor and get checked out. since you dont know how long it took the test to change it could be positive or it could be negative


How long will a pregnancy test show positive after an pregnancy?

About a week after the egg has been fertilized


Does a negative number times a negative number equal a positive number?

Yes, as long as you don't count zero as either positive or negative.


How long after a miscarriage should a pregnancy test show positive?

A pregnancy test can remain positive for 2 weeks after a miscarriage. Sometimes longer.


In a schematic drawing of battery is the long side the positive side or the negative?

The positive


Is decimal number greater than a negative number?

Positive numbers are greater than negative numbers. Decimals can be either positive or negative.


How do you get a negative integer with a positive integer and a negative integer?

As long as the negative integer is greater than the positive integer, a negative integer will result from addition, subtraction, multiplication, and division.


Can you get a negative positive pregnancy test?

It is possible. Pregnancy tests are never 100%. Depending on which one you used will depend on the accuracy of the answer. Another factor is how long it's been since your last period. False Positives and Negatives do sometimes occur though.


What does the long line in a battery sign represent?

negative is - positive is +


Does a positive pluse a negative equle a negative?

It can. For example if you have 2 + (-4) the answer is -2. It works as long as the number that is negative is larger than the positive number. (ie. 2 < 4) I hope this helps.


Can holding urine long before a pregnancy home test cause you to get a negative test?

No.


How long until the pregnancy test shows positive?

about 1O-14 days after conception.