FROM EXPERIENCE I can tell you that I took an Early Detection HPT 3 days before my period and the same day of my missed period..
BOTH NEGATIVE
Then I took 1 3days after my missed period and BOOM BFP(bigfatpositive)
wait until 3-7 days AFTER you miss your period to get a reliable result. Thats the best way.
i'm 6 weeks pregnant right now!
cindie
You can buy hpt that detect pregnancy as early as 4 days before your due.