I need some help...

Im all about hygiene so I know it’s not from being dirty but idk what’s going on with my vagina, it itches sooooo freaking bad and it burns when I go pee and even walking hurts sometimes. It’s been like this all week, I think maybe it’s a yeast infection but I’ve never had one so idk if that’s it or if it’s from my birth control I just started or what....😖😭