two varieties of reliable, early-detection pregnancy tests: the pregnancy
test strip (the same style of test used in clinics) and the midstream
test (the same style sold in drugstores). All pregnancy tests are over
If you are fertility charting, and you know your ovulation date, you may begin
testing as early as 7-10 DPO (days past ovulation) when the hCG level
in urine will, on average, reach 20 mIU/ml. We recommend using a first-morning
urine sample as this will contain the highest concentration of hCG.