could I be pregnant?

Tara
I had sex while I was ovulating. 
My period came RIGHT after ovulation. Like 6 days after I ovulated. I had my period, but it only lasted three days. Now, 6-8 days after my period ended, I have REALLY light pink spotting. 
Could I be pregnant? 
I normally cramp really bad on my period and I didn't at all this month.