Bleeding/ovulation? .. Help please..

So I took my clear blue digital today and it said peak. Now I'm spotting not pink not brown ... Light red. This has happened before for a couple of months but I just started tracking last month with opk. I'm taking vitex, prenatal, b complex, co q 10. I'm so confused. I never bleed between periods until TTC. Has this ever happened to anyone? What was going on?