Bleeding 2 days after ovulation, could it be implantation?

I have been TTC for the past 6 months. My last two cycles were
regular. Both were 33 day cycles with a positive OPK on day 21. This month, today is day 20. I had a positive OPK on day 17, had sex, and then last night, day 19 experienced very red bleeding, and this morning its spotting and also a bit darker at times.
From what I've read, its too early for implantation bleeding but I did read somewhere that it could be possible.
Do you think that it is implantation bleeding?

[mommaof4ormore]

I don't think so. I have heard that you can have light bleeding due to ovulation itself. Implantation does not take place till 7- 10 DPO, so it would be way to early for implantation bleeding. My dr informed me of the ovulation bleeding. I would spot on the 10th day of my cycle for about 3 months after my M/C and that's what they told me, so I hope this is helpful.