How positive are they? On OPKs the line has to be as dark as the control line or darker for them to be positive, unlike HPTs which you consider positive with even a really faint line. Id say that you should probably only have positive OPKs for 3 days max. Saying that you can release 2 eggs per cycle so it is possible for you to have an extended ovulation time frame.
hi there. Try the clearblue digital ones as they tell you when your LH surge is. I think with the others they just pick up the presence of LH and not necessarity the surge which is the indicator that you will ovulate in the next 24/36 hours. They are a bit more expensive though. Good luck.
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