Light period 6dpo? Start new cycle

Valerie • TTC again. Mom to one 👼🏽

If I’m testing negative at 12dpo and had bleeding for a day and 1/2 on 6dpo I would have implanted already correct? Is it safe to say I had my period early and that it was short. That was last week. My period was suppose to start Monday and didnt. Today is Wednesday 12 dpo supposedly and it’s negative