False Positives and Errors
Errors are extremely rare, and false positives are even more rare.  The
avid pee'er, however, may encounter one of these heartbreakers at
some point, so it is important to understand them and be prepared.


Errors are different from evaps in that they have color and they show up
within the appropriate time limit.  Errors can be spotted because the line
is incomplete (only going partially across the test area) or spotty.  
Getting an error test is relatively rare, although it does sometimes
happen even to the best brands of peesticks. Many citizens of Peestick
Paradise claim to see more errors on ICs and blue-dyed tests than
name brand pink-dyed tests. Remember  - when in doubt, test again
(and again and again!!!)

Here are a few questionable results (note - both the errors shown below
were taken in a cycle that did not result in pregnancy.  All other tests
taken at the time were negative, and good ol' AF arrived on time):

Aimstick error:

Walgreens test error:

False Positives

A false positive is a test that looks like an absolutely normal and
perfectly gorgeous BFP, but is not.   False positives are  over-reported,
as many of them are chemical pregnancies (or early miscarriages).   If a
woman gets, for example, a faint BFP at 12 DPO, and then AF shows up
two days later - she may think she had a false positive when,
unfortunately, she may have lost a very early pregnancy.  The only way to
know for sure would be to have blood tests done to look for hcG (but
even this may be inconclusive if levels are too low).

Disappearing Positive

If they did an X-Files episode about peesticks, it would be about
disappearing positives. Weird, rare, and mysterious. The queen has
had personal experience with a disappearing positive.  It was 10 DPO,
done with FMU and a FRER.  The line, pink and beautiful, showed up
only moments after the pee passed the result window. There was
laughter, crying, and celebration.  Then, hours later, the line
disappeared.  A call to the FRER 800 number and a review of the
instructions revealed that a positive is only a positive if it STAYS positive
for 48 hours.   AF showed up four days later.  So... what is the lesson
here? We have to stare at our peesticks for 48 hours to be sure we are
pregnant?  No... just confirm with another test before getting too excited.
Any good peestickaholic will have a sizable stash just waited to be peed

Was it a False Positive or a Chemical Pregnancy?

It is an important question for a ttc'er who wants to know if her fertility
problem is that she can't get pregnant versus she can't stay pregnant.

If you get a BFP, followed by AF, you may never know if it was a false
positive or if you lost an early pregnancy.  

Signs of a chemical pregnancy:

  • multiple tests showing BFP
  • AF arriving later than usual
  • AF seeming heavier or 'different' than usual
  • having early symptoms of pregnancy

If you seem to be the victim of repeated "false positives" cycle after cycle
- see your doctor. You may be losing early pregnancies for a variety of
reasons (many of them easily treatable!)
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