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Using OPK's as pregnancy tests?

I have been in this group for about 5 months now and noticed that some women use OPK"s to help 'predict' if they might be pregnant. Is this using first morning urine? And, 'if' you have confirmed your pregnancy later with a bloodtest or a home pregnancy test, what were you looking for on the OPK test to see if you 'might' be pregnant?


Asked by Anonymous at 1:37 PM on Nov. 20, 2010 in Trying to Conceive

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Answers (2)
  • You take it the same as you would a pregnancy test, and you look for a positive, which on an OPK is a test line as dark as or darker than the control line.

    The reason it works is because LH (the hormone OPKs look for) and hCG (the pregnancy hormone) are essentially the same, except for a little extra something the hCG has that the LH doesn't. Pregnancy tests look for that extra bit, which is why a line is a line is a positive, whereas OPKs look for the concentration of hormone, which peaks when you're about to ovulate (or keeps going up in the case of hCG when you get pregnant).

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    Answer by DragonRiderMD at 1:52 PM on Nov. 20, 2010

  • Thank you .. That explains it perfectly!

    Comment by Anonymous (original poster) at 1:53 PM on Nov. 20, 2010