Missed period by 7 days bleeding

Missed period by 7 days have been having pregnancy symptoms the past two weeks and now bleeding took a pregnancy test said negative could this still be implantation or no…TMI(I put in a menstrual cup after my shower and just wiped this pink blood from it that’s what it’s so much had the cup in for 5hrs)??sorry about the extra info just wanted to be as transparent as possible for the best answers 🙂