Late period

So my period is three days late right now, and I have all the signs that I should be getting my period. Could I be pregnant? When we had sex I made sure that I wasn’t ovulating and he did not finish that time, we stopped way before then. I know that even if he did not finish there is still a chance, but we wore a condom and it didn’t rip or anything. I’m just not sure what to think right now..