Scared to be pregnant?

Guys, 10 days ago me and my boyfriend made a make out session. I'm not using any kind of birth control so we decided not to penetrate. But, we made oral and he used the fingers... He did not cum near me and he kept his underwear on the whole time, but the undies was wet because of the pre-semen fluid. The undies touched the inside my thigh once but I washed it of after some minutes. He didn't touch my vagina with hands "dirty" from the fluid but he touched my buttcheeks. Any chances to be pregnant??

Seems stupid to be concerned but a girl is worried.

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GUYS! I'm getting a lot of hate/sarcastic and rude comments so I'd like to share a post from Rachel- Glow Community Manager:

You may see posts where you think the question is dumb or obvious. When this is the case, we ask that you scroll on. The Glow Community is not a place to shame others asking for help.

When you see those kinds of questions, please practice compassion and answer them as you would have like someone to have answered your own "dumb questions". If you can't, or you're too annoyed, amused, or frustrated, please just scroll on.

Rachel - Glow Community Manager- On note about "dumb questions" about sex and pregnancy

I would like to say thanks to everyone that was nice and send me a helpful response!