Period question

The chances of pregnancy are extremely low. I had a chemical pregnancy last September and no close calls since then.

TMI: I had a pink smudge on the tp two days ago (the day af was due) ,and nothing since. The only thing that I’ve noticed is my breast pain which I normally have.

I’m 99.9 % sure af will start any moment, because my low chances of pregnancy.

But out of curiosity, I’m looking for similar occurrences with anyone here.

Anyone have this happen on occasion?