Help me understand False Positive vs. CP?

posted 3 years ago in Pregnancy
Post # 3
1654 posts
Bumble bee
  • Wedding: January 2012

I think a false positive would be like an evaporation line or bleeding dye… Where as a CP would be a few days of positive tests (possibly late AF) that get lighter as the HCG runs through your system.

Post # 4
2774 posts
Sugar bee
  • Wedding: September 2012

There seems to be a few different definitions of a CP out there, but the one that makes the most sense to me is where you get a positive HPT before your period is due, but then your period comes on time or is early. Some say it’s any pregnancy not confirmed by a doctor before you start bleeding, but that could be any length of time after the positive HPT. I consider any bleeding after a positive test and after your period is late to be a miscarriage, and any bleeding occurring on the day of your period or before to be a chemical pregnancy (CP). BUT….like I said, some people have different views on it.


SO, she could have had a chemical pregnancy. To me it all depends on the type of HPT she used and how she used it on whether I’d consider it a false positive. Most of the false positives I’ve seen on here or have heard about have been on either the cheap internet HPTs, or the blue-dye brands. There is such a thing as a false positive, but it’s pretty rare. The thing that would be most common would be to get an evaporation line where the second line is supposed to show up, and people mistake that for a second line indicating pregnancy. If the test is used correctly (you ONLY check the results within the allotted frame of time, dip for as long as they tell you), and the brand of test is one of the more reliable ones, then it’s almost impossible to get a false positive.




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