PLEASE HELP ASAP

Okay ladies my boyfriend of 6 years and I had like amazing sex last night and he came inside of me as well. this morning I woke up to EXTREAM burning in my vagina and can hardly pee without crying from the pain... has anyone had this or know what this could be?! please help me I am in so much pain. Also for a bit now I've had a weird smell downstairs and a creamy discharge... (I don't know if that helps or not)