D.D.
I had implantation bleeding w/my 1st, but not my 2nd preg. I know it was around the time I should have gotten my period & I did have "twinges" & weird feelings in my lower abdomen (with both pregnancies) well before I tested positive. But, I'd give it a few more days before you test - it could just be spotting before your period. Sorry - I know waiting is the hardest! :p