S.L.
With my second pregnancy, the day before I could take the test, I started my period. Or so I thought. It was bright red, and lasted for a while. I was surprised to see my pad dry when I went to bed, though. The next day I got a positive pregnancy test.
So it's possible! Especially since you haven't had any more bleeding.
Oh, I also remember that my breasts started hurting really bad and I was wondering what that was about. They only hurt when I'm pregnant (well, besides nursing)