TTC: Implantation bleeding?

Hi everyone :), I’m just looking for some insight or advice for what’s happening to me right now. So Yesterday at around 10am I started spotting it was light pink spotting, i then put on a pad thinking it’s my period, i check the pad at 4pm thinking it’s full and it’s literally just two tiny spots and i wipe and it’s brown blood this has never happened to me before i never spot on my first day it’s always just full on red bleeding. That night at 11pm i checked again and bleeding has changed to bright red but still light. Today it is moderate (blood doesn’t fill up the pad but it’s there lol) no cramps just pressure from all the blood releasing. Has this happened to anyone and they found out they were pregnant?