I have discharge that is kind of yellow and resembles snot, what does this mean a STD or am I ovulating, I'm on birth control too. Help?

See a doctor . If you are on birth control then you shoulsnt be ovulating unless you don't take it normally. I recommend seeing a doctor asap to rule out an infection.
?gonorrhea. This is possibly gonorrhea but other causes such as trichomonas or bvcannot be ruled out . You should see your gyn.
See an OB/GYN. No way to diagnose this without seeing the discharge, obtaining a full history and doing a physical exam. Please see a gynecologist or start with your pcp and if you are in any doubt about std exposure, get tested. Hope this works out soon.