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February 11th, 2013, 09:08 PM
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MarinaAndCharlie'sMommy MarinaAndCharlie'sMommy is offline
Platinum Supermommy
Join Date: Jan 2009
Location: Louisville, KY
Posts: 7,706
Usually for an OPK the test line is supposed to be as dark as or darker than the control line. Hormones can fluctuate so the line might change in darkness before O. Also, it's best to not use FMU. The line may or may not disappear after O. Good luck!

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