Period help

Jackie • Baby boy born 10/17/16 Baby girl 09/14/18 🤰 with #3
Okay ladies I have a question I’m having a bit of a weird period.
Late last night after sex I had some very light pink spotting just when I wiped.This morning my period started was bright red normal amount of blood like I usually get.
I had a one normal tampon,was almost full but not quiet.Well my second tampon had like nothing on it,seriously like one spot of blood.and when I wiped there was no blood or pink or anything on the paper.which is very unusual,even for my light periods I still have blood when I wipe.I even put a piece of toilet paper up there and no blood.
Should I test? What are the chances I just happen to get early pregnancy bleeding on the day my period was due?