need help ladies 😩😩

So I'm having a problem with my vagina . After I have sex i have a smell, it's not an STI been checked for that! But it's mostly like the next day after sex or a couple days after . So I have a lot of problems with getting Bacteria vaginosis & UTI's. which I'm still trying to get under control 🙄 but I'm getting REALLY frustrated with it & wanted to see if maybe some of you ladies can help with any tips 😊 & I do wash up & clean after sex . Lol