Bv or yeast infection?

How do I know if I have BV or a yeast infection? My vagina has been super itchy, but mainly arounf the hole. It feels...idk just irritated and nasty, it smells off but not nasty. Like it smell how it usually smells if that makes sense. My discharge has more excessive and kinda like clumpy? Looks a bit like cottage. For some background info, I've never had a yeast infection before but my partner has been going anal to vaginal but Idk if that causes a yeast infection of BV. Please help, i can't go to the doctors bc i no longer have insurance and idk if they charge for this sort of thing. Thank you.