Pregnant and scan dates

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Originally Posted by nyc0404

Hi Atomic..question about CB opks being used with fmu..is this what's recommended? Like previous poster I too used digital opk in the morning to only get a negative but then got a positive in the evening..is it possible that fmu would not pick up surge? I would have thought it would since it's less diluted

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Follow the directions that came with your OPK as the Clearblues are supposedly calibrated to be used with FMU.

Most other brands are used after lunch, though, and some people do find they get better results with Clearblues after lunch.

It is always possible with any brand of OPK that you don't detect the surge at any given time of day.