Advice please ?

I have had so many negative test over the past year that it has just put me in a sad place.. Haven't been "trying" the last few months but also haven't been preventing it iether. The past few days I have had a slight pink discharge only when I clean after bathroom visits, my period is to start in 3-4 days.. Could this be be part of my period ? I have had a previous pregnancy but I had no symptoms at all.. Found out by chance at a Drs visit, no discharge, no cramps, no symptoms, so its hard to say but just dont want to be let down by another Negative..