miscarriage or period? tmi warning

so my period was 2 days late so just today i started considering the possibility of pregnancy... i’ve been having to get stomach xrays the past 3 weeks or so and i didn’t even think of pregnancy... i’m thinking this could be an early miscarriage? or maybe my period or implantation bleeding or something? i have really no clue. it was just that and i’m not continually bleeding like i was on my period...

actually tbh i think it’s the start of my period