Has anyone experienced light spotting mid cycle or during ovulation and know what it means?

My first cycle off BC after taking it for 15 years was 64 days and on day 48 I had light brownish/pink spotting that lasted only for a day. I'm having the same thing now on day 21 of my second cycle.

I googled it and still can't figure out if it's a good or bad thing. I will see my doctor soon, but I thought I'd throw it out here first. Does anyone know what this means? Is it harder to get pregnant or am I more likely to miscarry? Or is it a sign that I'm fertile?