Implantation bleed?

Grace

I am 10 days passed my peak ovulation day (on which my partner and I have sex, plus the few days leading up). I’m not due for my AF until the 9th but have started a weird bleed today? No usual symptoms like cramps or mood swings and there was no lead in to it like there normally is. It’s medium amount, bright blood red and a few clots here and there. Could it be an I.B?