K.D.
There is NO such thing as a false positive only a false negative, so congrats to you :-) As for the date of your last period, are you sure it was a regular period and not a short one? A short one COULD indicate that it was implantation bleeding and not a regular period. Also-- some women actually have period like bleeding all through their pregnancies, or at least through part of it, which can totally throw estimations on when you conceived off! I will tell you something though, each pregnancy you have can be completely different, so if you had morning sickness last time you were pregnant and you haven't been sick this time, it definitely doesn't mean you can't be FURTHER along than you think! Girl, I think you conceived last month not this month, is that possible? There really doesn't seem to be a way that a test could come up positive THIS soon if you truly did conceive then! But then again, maybe you ovulated a different time than you thought? Anyway hope I helped, let us know how far along you are when you find out!