Vagina odor

I’m on birth control, and I noticed the past month or so my vagina has had a different odor. It’s not fishy, more like musty/sweaty smelling. I never had this before.

I don’t have any weird discharge, no burning, nothing out of the ordinary. Just a different smell. I’m embarassed by it, I’m not sure what to do.

I wash with unscented, sensitive soap that I have used for years. Nothing has changed in my diet. The only thing is starting birth control about 7 months ago. What do I do? I can’t take this smell!