Is It Possible I’m Pregnant?

I’ve never had sex but my bf has humped me when we were both naked. His dick didn’t go in me & he didn’t cum but I’m worried that pre cum could have slipped into me somehow. This happened a while ago & I still got 3 regular periods after it. Now I’m 8 days late. I’m getting a little nervous. I’m young & I purposely have not had full sex to avoid pregnancy but now I’m still getting worried abt it. Is it possible?