I started feeling symptoms around 5 weeks (nausea) although I was really tired before that but I thought it was just me. Also a week before I was supposed to get my period my boobs were sore but I disregarded that since they get sore when my period is about to come. I just thought I was going to get an early period. The nausea continued and got worse. I still have it now and i'm 3months, boobs are still sore, and I only have energy some days.
Two weeks is not a very long time and you shouldn't be able to feel any symptoms so soon. You might want to go get a pap smear done to see what that discharge is, and don't worry about being pregnant until after you miss your period.