unprotected sex🙃

Hey girls! I had unprotected sex on March 12th, I ended my period on March 10th-11th. I still haven't gotten my period yet, I was supposed to get it on April 4th. Should I be worried? I'm only 6 days late. He didn't cum inside of me. I'm just asking for some insight because I think right now I'm just making myself unnecessarily nervous