unprotected sex

Okay, well I need help.. I was on the birth control patch and I took it off May 9th, was bleedingfor awhile before that and bled after.. I kept it off well I stopped bleeding monday the 15th.. I had unprotected sex, twice and he didn't pull out both times.. I'm worried, I took a test but it's still to early, it came out negative.. what are y'all thoughts?? He did smoke weed that day before we had sex and my periods are irregular so I'm thinking I don't have a chance of being prego, but still freaking out.