Implantation bleeding or spotting / period?

Hey guys! I’m 19 and in no position to be having a baby lol.

I got what I thought was the start of my period 3 days ago. It was really light bleeding, so I put on a pad. The blood was unusually dark. It was brown and like dryer? If that makes sense. Sorry if TMI. anyway, my period is not due for another week so I looked it up and learned about implantation bleeding. I lowkey have all the signs of it. My boyfriend and I always use a condom but I am not on the pill or any other BC method. I have been super stressed about being pregnant for the last 48 hours so maybe if this is my period thaf is the reason it has been so weird??? But yeah. I’m really just here Bc I wanna know people’s opinions. My period is always regular, red, and pretty heavy. It is now early, brown and light. Like it’s barely on my pad. It’s mostly just when I wipe. Help! Could this be implantation or is it just a weird period ? When can I take a test?

Plz let me know what your experiences were w implantation so I can compare.