HELP MEEEEE

So my discharge is like coming out a lot like my underwear’s always wet and or have like white slimy sour smelling discharge and I haven’t had my period since December but I’m use to irregular periods but my pee is like powdery like cloudy and I don’t kno what’s happening a couple of days ago my bf nutted in me but I got the plan b immediately after and now I’m on birth control what’s going on