Waiting2bMommy
Levi and Jax's Mommy!
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I think I did it yay!! thank you sooooo much your the best!!
The FRER is a HPT and might not pick up HCG if she is pregnant but an OPK only detects LH and can be positive but usually if the OPK is picking up the hormone of pregnancy and that is a strong line then the HPT will be positive. If the HPT is negative then it is most likely just detecting that she is going to O. At least that is my interpretation of it. Hope I am not getting it wrong though so if I am someone correct me.
OPKs do not detect the HCG hormone, they detect LH (luteinizing hormone) which is the hormone associated with ovulation.
Most importantly, OPK's are not purified as well as HPT's are. Therefore, they are more prone to "errors" and positives do not always mean that either LH or hCG was detected. In other words . . . they're simply cheaper, shoddier tests.