plan b and ovulating

So on Nov. 11th I hooked up with my ex and it was okay. It wasn’t anything special, but as soon as it was “over” [the sex] I had asked him where he came. Turns to find out, he thought it would be okay to cum inside of me, we’ve never done that together so I don’t know what compelled him to do so. After we realized this, we went right to CVS and bought a plan b and I took it. I decided to update my eve app and realized that I was ovulating that day. So i don’t know what to do really because there’s mixed reviews of people getting pregnant and then not getting pregnant. Has anyone been through this? Please don’t judge /: