Spotting-HELPP

I am TTC  I had intercourse from the 21st-27 with one app I am using saying my ovulation date was the 21st. I have been lightly spotting for a few days now and it is only when I wipe randomally on and off for the last few days.  My period is expected in 2 days. I know I can just wait to see if I get it but it's driving me insane and I don't want to test just yet. Could I be pregnant? I've been off BC since August in which I was using the nuva ring