HELP!?

Ava

so on tuesday everything down there was normal and then yesterday wednesday it was normal in the morning and i got home and i noticed my vagina had a faint sour smell to it and off white more yellow discharge. but like it’s only like a tiny clump or two or that stuff. and the sour smell is faint but there and it’s never happened before. so like????? help? (i’m a virgin too)