am I pregnant?!?!

Sam

So a couple of weeks ago, I had sex with this guy just a hook up. It was the day my period ended, and we didn’t use protection. But he didn’t cum inside me and I took a plan b. Ik pre cum can get you pregnant but it’s very rare, and i just got off my period, and I took a plan b. So I feel safe, but I’m still scared. Can anyone ease my mind?