Trust traditional OPKs over digital?

Question

I test with traditional OPKs and digital OPKs. I  like seeing the progression of the traditional OPKs but like the exactness of the digital OPKs.

I have been testing since CD 9. I usually ovulate between CD 12-14. Today I am at CD CD 13. We BDed at night on CD 11 and plan to tonight.

HOWEVER I am questioning the results I'm getting with my digital OPK - all "no LH surge" until now. See my traditional OPKs below. Looks like I had my surge yesterday (second OPK from the bottom).

What do you think? I'm just confused why my digital OPK wouldn't have been positive.

HELP! So desperate for my rainbow!

Answer

Digital tests have a lower threshold for LH than strip tests. That's because digitals predicts ovulation to occur anywhere in the next four days so LH doesn't have to be as high. The strip tests predict ovulation in the next 12-36 hours so they need more LH for a better pinpoint. On these strips, I usually have strips that get darker but not as dark as the control line then light again, and BBT usually confirms that ovulation did indeed occur with the darkest strip. Some women just don't produce LH in the same quantity as others and not every month. Good luck and baby dust.

Answer

Oh and just to add that on my traditional OPKs I never get a clear positive (test line is never exactly as or more dark than control).

Any comments?

Trust traditional OPKs over digital?

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