OPK's & sex: Most ovulation predictor kits (OPK) test for a hormone that surges prior to ovulation. Many times the egg has come and gone after the OPK has turned positive. However, other than a basal body temperature chart, that is the best the consumer has for ovulation timing.
Answered 11/14/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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