Why are my breast still hurting?

Sheena
My breast always hurt a few days before my period but this month they have not stop hurting got my period or maybe it's was not my period they hurt soooo much took a pregnancy test and negative but my friends are tell me to wait and take another in a week or two cuz I would be to early 
Is it possible that it was implantation bleeding.. I have four beautiful kids from my first marriage oldest 13 and youngest 7 and now after five years I'm trying to have another with my second marriage Had a miscarriage a few months ago and been trying for 6 months 
Feels like it will never happen again