Average Day Past Ovulation (DPO) for the first positive pregnancy test: 13.6 DPO
Average DPO for the first "false" negative test result: 10.3 DPO
Percentage of pregnancy charts with a positive test at 10 DPO: 10%
Percentage of pregnancy charts which show negative results before a positive result: 17%
Average time between the expected period and the first positive pregnancy test: 0.5 days before the expected period.
Percentage of negative test results taken three days or more before the expected period day on non pregnant charts: 40.7%
ALSO- here is a great site for some common questions... Best of luck!
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