Almost exactly a week before my period was due I started to spot what looked like brown discharge. It lasted for two days. Since then whenever I wipe I get a little bit of pink discharge. This has never happened to me before. My father said my mother got implantation bleeding when she was pregnant with my brothers and me. So is it more likely that I have implantation bleeding. I did have unprotected sex several times this month so I think its possible. I'm not late yet but in a week i might be.