Hi, my period is usually regular and i was due

Patient: Hi, my period is usually regular and i was due to get my period on 2nd june but on 26th may i started getting a crampy feeling asif my period was coming early followed by a couple of spots of blood then brown discharge. on the 27th i started bleeding bright red blood with little tiny black dots through it (this bleeding was much lighter than my usual period) and today 29th this red coloured blood is still here but spotting and very little skattered about my pad.. what could this be? I was sexually active during the time i was ovolating could this be implantation bleeding?

Doctor: