i see a trend!
well u cant buy them in all places but with ds2 i got my first BFP at 6DPO with "pregnosis" i did other brands the same day and after and bfn but they always gave me the bfp and from very early on.
now days most HPT's are early detection, a few yrs back there were less on the market but we all seem to want to know sooner and not wait the dreaded TWW!
good luck