Confused😩🥺

Okay so since Thursday night the 21st I have been having very light bleeding. So I’m thinking it’s implantation. My family told me tho that implantation doesn’t usually occur before a missed period. Yesterday was the day my period was due according to glow but that’s the day what I hope is implantation bleeding ended. I took a test yesterday and it was negative but I read on here that hcg levels don’t go up till days after implantation. What is going on!? I’m so confused🥺