Implantation bleeding?

Going to sound weird. I’m due on on the 1/2 September. I’m never ever early. I’ve been late a few times but never early. Could this be implantation bleeding and I may have ovulated late. As this month we didn’t keep track because we didn’t want to stress ourselves out as it’s all been getting too much lately!? Bleeding only started today. So don’t know how long I’ll have it for. If it is when should I test?