My breast leaked!? Help. Anyone know why?

Weird. I'm not really sure if I'm pregnant or not but today I was at work talking to a coworker of mine, and all of a sudden one breast felt wet, like my bra just out of the random, although my boobs have been sort of tender amd some days just sensitive, my nipple didn't feel weird at all. I went to the bathroom And sure enough my bra had this wet spot in it. It didn't have an odor it was just wet. My period is supposed to be here in like 2 days and I don't feel anything comming at all. Could this be a sign of early pregnancy? Need answers please. Sorta freakin out