My boyfriend and I do not have sex, and neither of us ever have due to our religion. We sometimes share a bed, and last time we did (about 2-3 weeks ago), fluid which I think was pre-ejaculate ended up on my pyjamas. I checked to see if it had soaked through and it didn't appear to have, but for some reason I'm a little paranoid that there's a chance I might be pregnant. Is there any chance?