Implantation Bleeding or Spotting Before Period?

- on Tuesday, light red spotting on TP once (10 DPO)

- on Wednesday, brown spotting with mucus and mild cramping on and off (11 DPO)

- period expected on Saturday

- last PGT taken at 11 DPO (negative)

- unprotected intercourse 5 times during fertile window

- history of regular periods