Advice! Could I be pregnant?

My last period was 6/18. Ovulated around the 4th. Had on days leading up to the 4th and on the 4th. My period is like clockwork every month, I should start Friday, but after going to the bathroom this morning noticed I was spotting, only when I wiped. No cramping or any other symptoms. Have been ttc since February. Maybe this is the month?!?