Musty smell

I’ve been having a musty smell around my Labia and I have no idea what it’s from it has a oily texture to it and just my labia that has the sent to it it smells after washing and all I just had cultures and a pap done while having the issue and everything came back normal … so I’m confused could it be just because I’m pregnant or what it’s definitely stressing me out cause who wants there vagina selling like a musty arm pit 😂😂😂😂😵‍💫🤦🏽‍♀️