Chemical pregnancy and period

So I'm kinda confused and hopefully someone can help me! I ended up having a chemical pregnancy last cycle, got my Bfp and the lines started getting lighter. Had bloodwork done and hcg went down big time. I ended up bleeding about 5 days later than my normal period would have been...is that bleeding considered my period or the chemical pregnancy? The reason I ask is because today I started getting some menstrual like cramps and if everything was normal I would be starting my period within the next few days. Thanks for any input!