hopefulmum2014
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- Apr 28, 2016
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When you get a positive OPK when should you BD? I find it confusing because lots of the apps are all for BD'ing before the positive OPK & like 1 day after but positive OPK means you are likely to ov in next 24 - 36 hours and the egg can survive 24 hours so why do the apps says last fertile day after positive OPK? xx