Am I pregnant?

On April 30th me &a my boyfriend had unprotected sex. When he came he "pulled out" after that I was nerves because he said he wasn't sure if he caught it on time. My period was suppose to come on , on the 9th of May .. But instead it was 2 days late. I search online for reason , and it said it could be from stress .. Can I get some opinions PLEASE 😩