7 days past my period, 15 days since "implantation bleeding" still negative test....

Are you sure it was implantation bleeding? I would call your doctor and ask for a blood draw if you are already a week late you should be getting a positive.

@littleonemorning 3 exact days of spotting

@the_yellaone, there’s a chance that it may have been your period. Again, I would ask for a blood test in like a week or two if you haven’t bled or spotted again.