0dpo - 3dpo bleeding? I mean BLEEDING.

First of all, I was recently diagnosed with a complex cyst on one ovary and a simple cyst on the other. I've been out on the whole "watch and see" with my doctor. Now, my husband and I have been TTC for about 10 months now. This month, I finally took an opk and got a positive on day 7 of my cycle. Hubby and I BD'd that day, the day after and 2 days after that. Well now, 3dpo, and I'm bleeding as if it's towards the end of my AF. I've been spotting for the last 3 days after my O day but not quite like this. Not to be TMI, but it's fresh, bright red blood. Not brown like its old or anything. Could this be ovulation bleeding? Or is it possible that it's implantation? Ie heard the egg can implant anywheres from 2-12 past fertilization. This is just off because I'm cramping and bleeding as if it's day 4 of my cycle! This has never happened before. Also thought maybe it could have something to do with the cyst? Anyone else experienced this?