TMI: Day 10 blood?

This cycle has been weird. Typically my period lasts 5 days, but this cycle it only lasted 2. I got a “peak fertility” reading on Day 9. This morning, Day 10, when I wiped, I saw a small tint of blood. This evening, after some hubby time, I was bleeding a bit more.

Has this happened to anyone? Does anyone know what this may be?