Could I be pregnant? (Tmi)

A few weeks ago me and my significant other had unprotected sex. He did not cum in me but I know pre cum can get you pregnant as well.... I took the morning after pill and about a week or so later I bled for a few days. For the past few days I've been having a slight milky discharge and I was supposed to start my period yesterday but didn't. Could it be possible I'm pregnant?