what are the chances?

So I was on the Depo shot. I stopped and then went on the pill for two months. I decided I wanted to have a break for a while, my last period was from roughly the 10th-16th of January. I have yet to get t period yet, the only kind of protected I've been using is condoms. What is the likelyhood that I'm pregnant? I'll be testing in a week if I haven't got my period yet by then. Just wanted a second opinion until then