So these are all the days I had sex on and I was suppose to start on the 20th ended up starting on the the 21st but when I look it was a light pink and white and sorta red and then this morning it got heavy I had all negative pregnancy test including the 20th and I also had sex on my day it was 33% and the medium days so could this be my period or implantation bleeding I’ve had no sign of cramping or cramping terribly has anyone experience this