Help!

Ok so yesterday 7dpo started to cramp & then when I wiped brown blood. Nothing in underwear that was it. Then today 8dpo having cramps again I wiped around 4:25pm & brown blood that was that? Thought it might be implantation bleeding. I’m kinda nervous my period is gonna come but I’m gonna test at 9dpo in the morning even tho I know i probably can’t tell that early then I’m gonna wait to see if my period comes or not. But what do you ladies think? Anyone else have this happen?