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Discussion & Conclusions:
Not surprisingly, we have to wait for 14 DPO to see 80% of the positive tests accounted for. This is quite in line with a separate study that we conducted earlier although in this sample we have slightly earlier testing and most likely with more sensitive tests as well.
More interesting is the conclusion that we can draw from the BFN data. According to the community data, if you get a negative test beyond 11 DPO your chance of getting a BFP later on is significantly reduced. In other words, if you get a negative (BFN) before 11 DPO (Days Past Ovulation) there is still a good chance that you could get a positive later on.
It is also a reminder that if you can do so, you need to delay your testing as long as possible. Obviously though there are real reasons to have to test earlier beyond simple curiosity.