Brown discharge days after ovulation

ali
Hey ladies, 
I am currently about three days past ovulation (3dpo) and experienced pretty thick and heavy brown discharge this morning. I have been ttc for three months now and I was really feeling confident that we finally did it this month, but now I'm not so sure. I use the digital clear blue ovulation test, timed it perfectly, and have had lots of sex. I had mild cramping after ovulation which I thought was a good sign until the discharge. I feel that it's too early to be implantation bleeding. Have any of you experienced the same thing and ended up pregnant? Or not? Any input to what this could be?