Can Precum get you pregnant?

My boyfriend and I were fooling around, he never inserted but was close to my va-JJ. 
I'm just curious if precum can get you pregnant if it touches your vagina or not? Also, if cum touches the outside of your vagina can that make your pregnant? 
May be a stupid question but I've been looking all over the internet and finding every answer in the book. 
Thanks for your answers ahead of time!