What is this ?

bri

I am having very pink discharge. Which I never ever had it before. I am 12dpo. I am also suppose to get my period today but I usually have symptoms of tender breast and terrible cramps but I haven’t experienced nothing just pink discharge what does this mean? I took a pregnancy test 3 days ago and it was negative could I have tested to soon? Or ?? Wait to see if my period comes ? To test again?