I was just playing with his dick with my hands. I was just rubbing it. He started pre cumming and it got on my hands (more on my left than my right though). About 20 minutes later, I rubbed my slit and stuck my finger in only to where I started getting wet. My finger was not in my vagina. What are the chances I could get pregnant from this?
Yes there is a chance that you could get pregnant from pre-cum, but with what you said, it's a very, very slight chance. Having said that, my suggestion to you is that you do some REAL research on the topic of sex and don't resort to forums such as this for answers. You see the asinine responses your question evoked.
No, that is extremely unlikely. There isn't sperm in precum, unless there was residual sperm in his urethra from previous ejaculations (which is gone if he peed after). Take a deep breath and try to relax.
It may be too late now, but everyone should know about emergency contraception. You can take it after an incident like this (or broken condom or something). It is available over the counter. http://www.plannedparenthood.org/health-topics/emergency-contraception-morning-after-pill-4363.asp (The link says it can work for up to 5 days.)
If it was your safe time then you need not be panic.There is a very little chance of pregnancy so don't worry.