Implantation???

Jasmine

My cycle starts in 5 days, last night I went to the bathroom and when I wiped I noticed light pink blood. And now today I’m spotting dark brown blood or discharge and it only happened once, I’m not sure. And for a few days I’ve been have dull light cramps in my right lower pelvic area. What does this mean? I ovulated on July 15th, and I was pregnant before 4 years ago and didn’t implantation bleeding jus sore boobs and a missed period was all I had. And I normally don’t get period symptoms until a day before my period.