Weird period

Hey guys so my period is really weird this month ... I was suppose to start on the 3rd ... and I think I got it but it has been super light basically like just spotting never filled a tampon cuz I didn’t even really need one and never even got on a pad just when I wiped ... it was dark red at times or just pink it only lasted for 4 days on and off .... has this happened to any of you? And could this mean I’m pregnant? Like could this have been implantation bleeding? Should I test or no?

Thank you all in advance