Does this mean my period is coming?

Im 21. I had the same problem in 2010. I was one week away from having my period and i was litterally leaking clear discharge and 3 days later it got so much lighter and the color was so much whiter too and no foul smell. I thought for sure that it could be sign that i was gonna have my period and when it came to that day i didnt have my period i waited a week to see if i would get it and i didnt get it. I waited another week and than i was stress now....and turns out....I was pregnant and i was 2 weeks pregnant. So yah...my point is. You should wait if u do miss a period you should go see a doctor or get test. U could be pregnant and than again u may not be. Good luck to you sunshine and hope u know wats wrong and hope u feel better soon.