Midcycle bleeding

Hi everyone! Let me start by saying last cycle, I had really light midcycle spotting. Could be ovulation spotting. I ended up getting pregnant and miscarrying. Fast forward to this cycle. I had the same thing, except this bleeding was red, mucusy, and I was sure af was gonna start (even though I was only on cd18). It was a lot more than last month, but only when I wiped. Not enough for a liner and didn't get on my panties. What could this bleeding be?