TMI BUT I NEED HELP

Emily
okay sorry if this is nasty or bothers any of you but I need help. my SO and I haven't been able to have sex for about 3 weeks or so because when we do there is a smell that is very hard to describe. it's almost like sweet but milky and then has a stench. and now I'm seeing this really white creamy discharge in my underwear and it also came out when I pee. I have no pain just the smell and discharge. I know it isn't an STD and no chance I'm pregnant so what could it be? Please help! Going to the doctor on Wednesday!